[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // 17.07.06 V. Grichine - first implementation |
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| 28 | // 22.01.07 V.Ivanchenko - add interface with Z and A |
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| 29 | // 05.03.07 V.Ivanchenko - add IfZAApplicable |
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| 30 | // |
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| 31 | |
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| 32 | #include "G4GlauberGribovCrossSection.hh" |
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| 33 | |
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| 34 | #include "G4ParticleTable.hh" |
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| 35 | #include "G4IonTable.hh" |
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| 36 | #include "G4ParticleDefinition.hh" |
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| 37 | |
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| 38 | ////////////////////////////////////////////////////////////////////////////////////// |
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| 39 | // |
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| 40 | // |
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| 41 | |
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[962] | 42 | const G4double G4GlauberGribovCrossSection::fNeutronBarCorrectionTot[93] = { |
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[819] | 43 | |
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[962] | 44 | 1.0, 1.0, 1.118517e+00, 1.082002e+00, 1.116171e+00, 1.078747e+00, 1.061315e+00, |
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| 45 | 1.058205e+00, 1.082663e+00, 1.068500e+00, 1.076912e+00, 1.083475e+00, 1.079117e+00, |
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| 46 | 1.071856e+00, 1.071990e+00, 1.073774e+00, 1.079356e+00, 1.081314e+00, 1.082056e+00, |
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| 47 | 1.090772e+00, 1.096776e+00, 1.095828e+00, 1.097678e+00, 1.099157e+00, 1.103677e+00, |
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| 48 | 1.105132e+00, 1.109806e+00, 1.110816e+00, 1.117378e+00, 1.115165e+00, 1.115710e+00, |
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| 49 | 1.111855e+00, 1.110482e+00, 1.110112e+00, 1.106676e+00, 1.108706e+00, 1.105549e+00, |
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| 50 | 1.106318e+00, 1.106242e+00, 1.107672e+00, 1.107342e+00, 1.108119e+00, 1.106655e+00, |
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| 51 | 1.102588e+00, 1.096657e+00, 1.092920e+00, 1.086629e+00, 1.083592e+00, 1.076030e+00, |
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| 52 | 1.083777e+00, 1.089460e+00, 1.086545e+00, 1.079924e+00, 1.082218e+00, 1.077798e+00, |
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| 53 | 1.077062e+00, 1.072825e+00, 1.072241e+00, 1.072104e+00, 1.072490e+00, 1.069829e+00, |
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| 54 | 1.070398e+00, 1.065458e+00, 1.064968e+00, 1.060524e+00, 1.060048e+00, 1.057620e+00, |
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| 55 | 1.056428e+00, 1.055366e+00, 1.055017e+00, 1.052304e+00, 1.051767e+00, 1.049728e+00, |
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| 56 | 1.048745e+00, 1.047399e+00, 1.045876e+00, 1.042972e+00, 1.041824e+00, 1.039993e+00, |
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| 57 | 1.039021e+00, 1.036627e+00, 1.034176e+00, 1.032526e+00, 1.033633e+00, 1.036107e+00, |
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| 58 | 1.037803e+00, 1.031266e+00, 1.032991e+00, 1.033284e+00, 1.035015e+00, 1.033945e+00, |
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| 59 | 1.037075e+00, 1.034721e+00 |
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| 60 | |
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| 61 | }; |
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| 62 | |
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| 63 | const G4double G4GlauberGribovCrossSection::fNeutronBarCorrectionIn[93] = { |
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| 64 | |
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| 65 | 1.0, 1.0, 1.167421e+00, 1.156250e+00, 1.205364e+00, 1.154225e+00, 1.120391e+00, |
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| 66 | 1.124632e+00, 1.129460e+00, 1.107863e+00, 1.102152e+00, 1.104593e+00, 1.100285e+00, |
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| 67 | 1.098450e+00, 1.092677e+00, 1.101124e+00, 1.106461e+00, 1.115049e+00, 1.123903e+00, |
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| 68 | 1.126661e+00, 1.131259e+00, 1.133949e+00, 1.134185e+00, 1.133767e+00, 1.132813e+00, |
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| 69 | 1.131515e+00, 1.130338e+00, 1.134171e+00, 1.139206e+00, 1.141474e+00, 1.142189e+00, |
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| 70 | 1.140725e+00, 1.140100e+00, 1.139848e+00, 1.137674e+00, 1.138645e+00, 1.136339e+00, |
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| 71 | 1.136439e+00, 1.135946e+00, 1.136431e+00, 1.135702e+00, 1.135703e+00, 1.134113e+00, |
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| 72 | 1.131935e+00, 1.128381e+00, 1.126373e+00, 1.122453e+00, 1.120908e+00, 1.115953e+00, |
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| 73 | 1.115947e+00, 1.114426e+00, 1.111749e+00, 1.106207e+00, 1.107494e+00, 1.103622e+00, |
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| 74 | 1.102576e+00, 1.098816e+00, 1.097889e+00, 1.097306e+00, 1.097130e+00, 1.094578e+00, |
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| 75 | 1.094552e+00, 1.090222e+00, 1.089358e+00, 1.085409e+00, 1.084560e+00, 1.082182e+00, |
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| 76 | 1.080773e+00, 1.079464e+00, 1.078724e+00, 1.076121e+00, 1.075235e+00, 1.073159e+00, |
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| 77 | 1.071920e+00, 1.070395e+00, 1.069503e+00, 1.067525e+00, 1.066919e+00, 1.065779e+00, |
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| 78 | 1.065319e+00, 1.063730e+00, 1.062092e+00, 1.061085e+00, 1.059908e+00, 1.059815e+00, |
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| 79 | 1.059109e+00, 1.051920e+00, 1.051258e+00, 1.049473e+00, 1.048823e+00, 1.045984e+00, |
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| 80 | 1.046435e+00, 1.042614e+00 |
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| 81 | |
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| 82 | }; |
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| 83 | |
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| 84 | const G4double G4GlauberGribovCrossSection::fProtonBarCorrectionTot[93] = { |
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| 85 | |
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| 86 | 1.0, 1.0, |
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| 87 | 1.118515e+00, 1.082000e+00, 1.116169e+00, 1.078745e+00, 1.061313e+00, 1.058203e+00, |
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| 88 | 1.082661e+00, 1.068498e+00, 1.076910e+00, 1.083474e+00, 1.079115e+00, 1.071854e+00, |
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| 89 | 1.071988e+00, 1.073772e+00, 1.079355e+00, 1.081312e+00, 1.082054e+00, 1.090770e+00, |
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| 90 | 1.096774e+00, 1.095827e+00, 1.097677e+00, 1.099156e+00, 1.103676e+00, 1.105130e+00, |
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| 91 | 1.109805e+00, 1.110814e+00, 1.117377e+00, 1.115163e+00, 1.115708e+00, 1.111853e+00, |
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| 92 | 1.110480e+00, 1.110111e+00, 1.106674e+00, 1.108705e+00, 1.105548e+00, 1.106317e+00, |
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| 93 | 1.106241e+00, 1.107671e+00, 1.107341e+00, 1.108118e+00, 1.106654e+00, 1.102586e+00, |
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| 94 | 1.096655e+00, 1.092918e+00, 1.086628e+00, 1.083590e+00, 1.076028e+00, 1.083776e+00, |
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| 95 | 1.089458e+00, 1.086543e+00, 1.079923e+00, 1.082216e+00, 1.077797e+00, 1.077061e+00, |
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| 96 | 1.072824e+00, 1.072239e+00, 1.072103e+00, 1.072488e+00, 1.069828e+00, 1.070396e+00, |
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| 97 | 1.065456e+00, 1.064966e+00, 1.060523e+00, 1.060047e+00, 1.057618e+00, 1.056427e+00, |
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| 98 | 1.055365e+00, 1.055016e+00, 1.052303e+00, 1.051766e+00, 1.049727e+00, 1.048743e+00, |
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| 99 | 1.047397e+00, 1.045875e+00, 1.042971e+00, 1.041823e+00, 1.039992e+00, 1.039019e+00, |
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| 100 | 1.036626e+00, 1.034175e+00, 1.032525e+00, 1.033632e+00, 1.036106e+00, 1.037802e+00, |
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| 101 | 1.031265e+00, 1.032990e+00, 1.033283e+00, 1.035014e+00, 1.033944e+00, 1.037074e+00, |
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| 102 | 1.034720e+00 |
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| 103 | |
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| 104 | }; |
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| 105 | |
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| 106 | const G4double G4GlauberGribovCrossSection::fProtonBarCorrectionIn[93] = { |
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| 107 | |
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| 108 | 1.0, 1.0, |
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| 109 | 1.167419e+00, 1.156248e+00, 1.205362e+00, 1.154224e+00, 1.120390e+00, 1.124630e+00, |
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| 110 | 1.129459e+00, 1.107861e+00, 1.102151e+00, 1.104591e+00, 1.100284e+00, 1.098449e+00, |
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| 111 | 1.092675e+00, 1.101122e+00, 1.106460e+00, 1.115048e+00, 1.123902e+00, 1.126659e+00, |
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| 112 | 1.131258e+00, 1.133948e+00, 1.134183e+00, 1.133766e+00, 1.132812e+00, 1.131514e+00, |
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| 113 | 1.130337e+00, 1.134170e+00, 1.139205e+00, 1.141472e+00, 1.142188e+00, 1.140724e+00, |
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| 114 | 1.140099e+00, 1.139847e+00, 1.137672e+00, 1.138644e+00, 1.136338e+00, 1.136438e+00, |
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| 115 | 1.135945e+00, 1.136429e+00, 1.135701e+00, 1.135702e+00, 1.134112e+00, 1.131934e+00, |
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| 116 | 1.128380e+00, 1.126371e+00, 1.122452e+00, 1.120907e+00, 1.115952e+00, 1.115946e+00, |
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| 117 | 1.114425e+00, 1.111748e+00, 1.106205e+00, 1.107493e+00, 1.103621e+00, 1.102575e+00, |
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| 118 | 1.098815e+00, 1.097888e+00, 1.097305e+00, 1.097129e+00, 1.094577e+00, 1.094551e+00, |
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| 119 | 1.090221e+00, 1.089357e+00, 1.085408e+00, 1.084559e+00, 1.082181e+00, 1.080772e+00, |
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| 120 | 1.079463e+00, 1.078723e+00, 1.076120e+00, 1.075234e+00, 1.073158e+00, 1.071919e+00, |
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| 121 | 1.070394e+00, 1.069502e+00, 1.067524e+00, 1.066918e+00, 1.065778e+00, 1.065318e+00, |
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| 122 | 1.063729e+00, 1.062091e+00, 1.061084e+00, 1.059907e+00, 1.059814e+00, 1.059108e+00, |
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| 123 | 1.051919e+00, 1.051257e+00, 1.049472e+00, 1.048822e+00, 1.045983e+00, 1.046434e+00, |
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| 124 | 1.042613e+00 |
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| 125 | |
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| 126 | }; |
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| 127 | |
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| 128 | |
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| 129 | const G4double G4GlauberGribovCrossSection::fPionPlusBarCorrectionTot[93] = { |
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| 130 | |
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| 131 | 1.0, 1.0, |
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| 132 | 1.075927e+00, 1.074407e+00, 1.126098e+00, 1.100127e+00, 1.089742e+00, 1.083536e+00, |
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| 133 | 1.089988e+00, 1.103566e+00, 1.096922e+00, 1.126573e+00, 1.132734e+00, 1.136512e+00, |
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| 134 | 1.136629e+00, 1.133086e+00, 1.132428e+00, 1.129299e+00, 1.125622e+00, 1.126992e+00, |
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| 135 | 1.127840e+00, 1.162670e+00, 1.160392e+00, 1.157864e+00, 1.157227e+00, 1.154627e+00, |
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| 136 | 1.192555e+00, 1.197243e+00, 1.197911e+00, 1.200326e+00, 1.220053e+00, 1.215019e+00, |
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| 137 | 1.211703e+00, 1.209080e+00, 1.204248e+00, 1.203328e+00, 1.198671e+00, 1.196840e+00, |
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| 138 | 1.194392e+00, 1.193037e+00, 1.190408e+00, 1.188583e+00, 1.206127e+00, 1.210028e+00, |
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| 139 | 1.206434e+00, 1.204456e+00, 1.200547e+00, 1.199058e+00, 1.200174e+00, 1.200276e+00, |
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| 140 | 1.198912e+00, 1.213048e+00, 1.207160e+00, 1.208020e+00, 1.203814e+00, 1.202380e+00, |
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| 141 | 1.198306e+00, 1.197002e+00, 1.196027e+00, 1.195449e+00, 1.192563e+00, 1.192135e+00, |
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| 142 | 1.187556e+00, 1.186308e+00, 1.182124e+00, 1.180900e+00, 1.178224e+00, 1.176471e+00, |
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| 143 | 1.174811e+00, 1.173702e+00, 1.170827e+00, 1.169581e+00, 1.167205e+00, 1.165626e+00, |
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| 144 | 1.180244e+00, 1.177626e+00, 1.175121e+00, 1.173903e+00, 1.172192e+00, 1.171128e+00, |
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| 145 | 1.168997e+00, 1.166826e+00, 1.164130e+00, 1.165412e+00, 1.165504e+00, 1.165020e+00, |
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| 146 | 1.158462e+00, 1.158014e+00, 1.156519e+00, 1.156081e+00, 1.153602e+00, 1.154190e+00, |
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| 147 | 1.152974e+00 |
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| 148 | |
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| 149 | }; |
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| 150 | |
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| 151 | const G4double G4GlauberGribovCrossSection::fPionPlusBarCorrectionIn[93] = { |
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| 152 | |
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| 153 | 1.0, 1.0, |
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| 154 | 1.140246e+00, 1.097872e+00, 1.104301e+00, 1.068722e+00, 1.044495e+00, 1.062622e+00, |
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| 155 | 1.047987e+00, 1.037032e+00, 1.035686e+00, 1.042870e+00, 1.052222e+00, 1.065100e+00, |
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| 156 | 1.070480e+00, 1.078286e+00, 1.081488e+00, 1.089713e+00, 1.099105e+00, 1.098003e+00, |
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| 157 | 1.102175e+00, 1.117707e+00, 1.121734e+00, 1.125229e+00, 1.126457e+00, 1.128905e+00, |
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| 158 | 1.137312e+00, 1.126263e+00, 1.126459e+00, 1.115191e+00, 1.116986e+00, 1.117184e+00, |
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| 159 | 1.117037e+00, 1.116777e+00, 1.115858e+00, 1.115745e+00, 1.114489e+00, 1.113993e+00, |
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| 160 | 1.113226e+00, 1.112818e+00, 1.111890e+00, 1.111238e+00, 1.111209e+00, 1.111775e+00, |
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| 161 | 1.110256e+00, 1.109414e+00, 1.107647e+00, 1.106980e+00, 1.106096e+00, 1.107331e+00, |
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| 162 | 1.107849e+00, 1.106407e+00, 1.103426e+00, 1.103896e+00, 1.101756e+00, 1.101031e+00, |
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| 163 | 1.098915e+00, 1.098260e+00, 1.097768e+00, 1.097487e+00, 1.095964e+00, 1.095773e+00, |
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| 164 | 1.093348e+00, 1.092687e+00, 1.090465e+00, 1.089821e+00, 1.088394e+00, 1.087462e+00, |
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| 165 | 1.086571e+00, 1.085997e+00, 1.084451e+00, 1.083798e+00, 1.082513e+00, 1.081670e+00, |
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| 166 | 1.080735e+00, 1.075659e+00, 1.074341e+00, 1.073689e+00, 1.072787e+00, 1.072237e+00, |
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| 167 | 1.071107e+00, 1.069955e+00, 1.064856e+00, 1.065873e+00, 1.065938e+00, 1.065694e+00, |
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| 168 | 1.062192e+00, 1.061967e+00, 1.061180e+00, 1.060960e+00, 1.059646e+00, 1.059975e+00, |
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| 169 | 1.059658e+00 |
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| 170 | |
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| 171 | }; |
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| 172 | |
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| 173 | |
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| 174 | const G4double G4GlauberGribovCrossSection::fPionMinusBarCorrectionTot[93] = { |
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| 175 | |
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| 176 | 1.0, 1.0, |
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| 177 | 1.075927e+00, 1.077959e+00, 1.129145e+00, 1.102088e+00, 1.089765e+00, 1.083542e+00, |
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| 178 | 1.089995e+00, 1.104895e+00, 1.097154e+00, 1.127663e+00, 1.133063e+00, 1.137425e+00, |
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| 179 | 1.136724e+00, 1.133859e+00, 1.132498e+00, 1.130276e+00, 1.127896e+00, 1.127656e+00, |
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| 180 | 1.127905e+00, 1.164210e+00, 1.162259e+00, 1.160075e+00, 1.158978e+00, 1.156649e+00, |
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| 181 | 1.194157e+00, 1.199177e+00, 1.198983e+00, 1.202325e+00, 1.221967e+00, 1.217548e+00, |
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| 182 | 1.214389e+00, 1.211760e+00, 1.207335e+00, 1.206081e+00, 1.201766e+00, 1.199779e+00, |
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| 183 | 1.197283e+00, 1.195706e+00, 1.193071e+00, 1.191115e+00, 1.208838e+00, 1.212681e+00, |
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| 184 | 1.209235e+00, 1.207163e+00, 1.203451e+00, 1.201807e+00, 1.203283e+00, 1.203388e+00, |
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| 185 | 1.202244e+00, 1.216509e+00, 1.211066e+00, 1.211504e+00, 1.207539e+00, 1.205991e+00, |
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| 186 | 1.202143e+00, 1.200724e+00, 1.199595e+00, 1.198815e+00, 1.196025e+00, 1.195390e+00, |
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| 187 | 1.191137e+00, 1.189791e+00, 1.185888e+00, 1.184575e+00, 1.181996e+00, 1.180229e+00, |
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| 188 | 1.178545e+00, 1.177355e+00, 1.174616e+00, 1.173312e+00, 1.171016e+00, 1.169424e+00, |
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| 189 | 1.184120e+00, 1.181478e+00, 1.179085e+00, 1.177817e+00, 1.176124e+00, 1.175003e+00, |
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| 190 | 1.172947e+00, 1.170858e+00, 1.168170e+00, 1.169397e+00, 1.169304e+00, 1.168706e+00, |
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| 191 | 1.162774e+00, 1.162217e+00, 1.160740e+00, 1.160196e+00, 1.157857e+00, 1.158220e+00, |
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| 192 | 1.157267e+00 |
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| 193 | }; |
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| 194 | |
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| 195 | |
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| 196 | const G4double G4GlauberGribovCrossSection::fPionMinusBarCorrectionIn[93] = { |
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| 197 | |
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| 198 | 1.0, 1.0, |
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| 199 | 1.140246e+00, 1.100898e+00, 1.106773e+00, 1.070289e+00, 1.044514e+00, 1.062628e+00, |
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| 200 | 1.047992e+00, 1.038041e+00, 1.035862e+00, 1.043679e+00, 1.052466e+00, 1.065780e+00, |
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| 201 | 1.070551e+00, 1.078869e+00, 1.081541e+00, 1.090455e+00, 1.100847e+00, 1.098511e+00, |
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| 202 | 1.102226e+00, 1.118865e+00, 1.123143e+00, 1.126904e+00, 1.127785e+00, 1.130444e+00, |
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| 203 | 1.138502e+00, 1.127678e+00, 1.127244e+00, 1.116634e+00, 1.118347e+00, 1.118988e+00, |
---|
| 204 | 1.118957e+00, 1.118696e+00, 1.118074e+00, 1.117722e+00, 1.116717e+00, 1.116111e+00, |
---|
| 205 | 1.115311e+00, 1.114745e+00, 1.113814e+00, 1.113069e+00, 1.113141e+00, 1.113660e+00, |
---|
| 206 | 1.112249e+00, 1.111343e+00, 1.109718e+00, 1.108942e+00, 1.108310e+00, 1.109549e+00, |
---|
| 207 | 1.110227e+00, 1.108846e+00, 1.106183e+00, 1.106354e+00, 1.104388e+00, 1.103583e+00, |
---|
| 208 | 1.101632e+00, 1.100896e+00, 1.100296e+00, 1.099873e+00, 1.098420e+00, 1.098082e+00, |
---|
| 209 | 1.095892e+00, 1.095162e+00, 1.093144e+00, 1.092438e+00, 1.091083e+00, 1.090142e+00, |
---|
| 210 | 1.089236e+00, 1.088604e+00, 1.087159e+00, 1.086465e+00, 1.085239e+00, 1.084388e+00, |
---|
| 211 | 1.083473e+00, 1.078373e+00, 1.077136e+00, 1.076450e+00, 1.075561e+00, 1.074973e+00, |
---|
| 212 | 1.073898e+00, 1.072806e+00, 1.067706e+00, 1.068684e+00, 1.068618e+00, 1.068294e+00, |
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| 213 | 1.065241e+00, 1.064939e+00, 1.064166e+00, 1.063872e+00, 1.062659e+00, 1.062828e+00, |
---|
| 214 | 1.062699e+00 |
---|
| 215 | |
---|
| 216 | }; |
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| 217 | |
---|
| 218 | |
---|
| 219 | |
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| 220 | |
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| 221 | //////////////////////////////////////////////////////////////////////////////// |
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| 222 | // |
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| 223 | // |
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| 224 | |
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[819] | 225 | G4GlauberGribovCrossSection::G4GlauberGribovCrossSection() |
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[962] | 226 | : fUpperLimit( 100000 * GeV ), |
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[819] | 227 | fLowerLimit( 3 * GeV ), |
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| 228 | fRadiusConst( 1.08*fermi ) // 1.1, 1.3 ? |
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| 229 | { |
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| 230 | theGamma = G4Gamma::Gamma(); |
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| 231 | theProton = G4Proton::Proton(); |
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| 232 | theNeutron = G4Neutron::Neutron(); |
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| 233 | theAProton = G4AntiProton::AntiProton(); |
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| 234 | theANeutron = G4AntiNeutron::AntiNeutron(); |
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| 235 | thePiPlus = G4PionPlus::PionPlus(); |
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| 236 | thePiMinus = G4PionMinus::PionMinus(); |
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| 237 | thePiZero = G4PionZero::PionZero(); |
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| 238 | theKPlus = G4KaonPlus::KaonPlus(); |
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| 239 | theKMinus = G4KaonMinus::KaonMinus(); |
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| 240 | theK0S = G4KaonZeroShort::KaonZeroShort(); |
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| 241 | theK0L = G4KaonZeroLong::KaonZeroLong(); |
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| 242 | theL = G4Lambda::Lambda(); |
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| 243 | theAntiL = G4AntiLambda::AntiLambda(); |
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| 244 | theSPlus = G4SigmaPlus::SigmaPlus(); |
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| 245 | theASPlus = G4AntiSigmaPlus::AntiSigmaPlus(); |
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| 246 | theSMinus = G4SigmaMinus::SigmaMinus(); |
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| 247 | theASMinus = G4AntiSigmaMinus::AntiSigmaMinus(); |
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| 248 | theS0 = G4SigmaZero::SigmaZero(); |
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| 249 | theAS0 = G4AntiSigmaZero::AntiSigmaZero(); |
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| 250 | theXiMinus = G4XiMinus::XiMinus(); |
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| 251 | theXi0 = G4XiZero::XiZero(); |
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| 252 | theAXiMinus = G4AntiXiMinus::AntiXiMinus(); |
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| 253 | theAXi0 = G4AntiXiZero::AntiXiZero(); |
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| 254 | theOmega = G4OmegaMinus::OmegaMinus(); |
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| 255 | theAOmega = G4AntiOmegaMinus::AntiOmegaMinus(); |
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| 256 | theD = G4Deuteron::Deuteron(); |
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| 257 | theT = G4Triton::Triton(); |
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| 258 | theA = G4Alpha::Alpha(); |
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| 259 | theHe3 = G4He3::He3(); |
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| 260 | } |
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| 261 | |
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| 262 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 263 | // |
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| 264 | // |
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| 265 | |
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| 266 | G4GlauberGribovCrossSection::~G4GlauberGribovCrossSection() |
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| 267 | { |
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| 268 | } |
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| 269 | |
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| 270 | |
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| 271 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 272 | // |
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| 273 | // |
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| 274 | |
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| 275 | |
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| 276 | G4bool |
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| 277 | G4GlauberGribovCrossSection::IsApplicable(const G4DynamicParticle* aDP, |
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| 278 | const G4Element* anElement) |
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| 279 | { |
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| 280 | return IsZAApplicable(aDP, anElement->GetZ(), anElement->GetN()); |
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| 281 | } |
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| 282 | |
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| 283 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 284 | // |
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| 285 | // |
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| 286 | |
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| 287 | G4bool |
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| 288 | G4GlauberGribovCrossSection::IsZAApplicable(const G4DynamicParticle* aDP, |
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| 289 | G4double Z, G4double) |
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| 290 | { |
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| 291 | G4bool applicable = false; |
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| 292 | // G4int baryonNumber = aDP->GetDefinition()->GetBaryonNumber(); |
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| 293 | G4double kineticEnergy = aDP->GetKineticEnergy(); |
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| 294 | |
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| 295 | const G4ParticleDefinition* theParticle = aDP->GetDefinition(); |
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| 296 | |
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| 297 | if ( ( kineticEnergy >= fLowerLimit && |
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| 298 | Z > 1.5 && // >= He |
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| 299 | ( theParticle == theAProton || |
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| 300 | theParticle == theGamma || |
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| 301 | theParticle == theKPlus || |
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| 302 | theParticle == theKMinus || |
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| 303 | theParticle == theSMinus) ) || |
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| 304 | |
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[962] | 305 | ( kineticEnergy >= fLowerLimit && |
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[819] | 306 | Z > 1.5 && // >= He |
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| 307 | ( theParticle == theProton || |
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| 308 | theParticle == theNeutron || |
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| 309 | theParticle == thePiPlus || |
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| 310 | theParticle == thePiMinus ) ) ) applicable = true; |
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| 311 | |
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| 312 | return applicable; |
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| 313 | } |
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| 314 | |
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| 315 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 316 | // |
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| 317 | // Calculates total and inelastic Xsc, derives elastic as total - inelastic accordong to |
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| 318 | // Glauber model with Gribov correction calculated in the dipole approximation on |
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| 319 | // light cone. Gaussian density helps to calculate rest integrals of the model. |
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| 320 | // [1] B.Z. Kopeliovich, nucl-th/0306044 |
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| 321 | |
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| 322 | |
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| 323 | G4double G4GlauberGribovCrossSection:: |
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| 324 | GetCrossSection(const G4DynamicParticle* aParticle, const G4Element* anElement, G4double T) |
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| 325 | { |
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| 326 | return GetIsoZACrossSection(aParticle, anElement->GetZ(), anElement->GetN(), T); |
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| 327 | } |
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| 328 | |
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| 329 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 330 | // |
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| 331 | // Calculates total and inelastic Xsc, derives elastic as total - inelastic accordong to |
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| 332 | // Glauber model with Gribov correction calculated in the dipole approximation on |
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| 333 | // light cone. Gaussian density of point-like nucleons helps to calculate rest integrals of the model. |
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| 334 | // [1] B.Z. Kopeliovich, nucl-th/0306044 + simplification above |
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| 335 | |
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| 336 | |
---|
| 337 | |
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| 338 | G4double G4GlauberGribovCrossSection:: |
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| 339 | GetIsoZACrossSection(const G4DynamicParticle* aParticle, G4double Z, G4double A, G4double) |
---|
| 340 | { |
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| 341 | G4double xsection, sigma, cofInelastic, cofTotal, nucleusSquare, ratio; |
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| 342 | G4double R = GetNucleusRadius(A); |
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| 343 | |
---|
| 344 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
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| 345 | |
---|
| 346 | if( theParticle == theProton || |
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| 347 | theParticle == theNeutron || |
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| 348 | theParticle == thePiPlus || |
---|
| 349 | theParticle == thePiMinus ) |
---|
| 350 | { |
---|
| 351 | sigma = GetHadronNucleonXscNS(aParticle, A, Z); |
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| 352 | cofInelastic = 2.4; |
---|
| 353 | cofTotal = 2.0; |
---|
| 354 | } |
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| 355 | else |
---|
| 356 | { |
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| 357 | sigma = GetHadronNucleonXscPDG(aParticle, A, Z); |
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| 358 | cofInelastic = 2.2; |
---|
| 359 | cofTotal = 2.0; |
---|
| 360 | } |
---|
| 361 | // cofInelastic = 2.0; |
---|
| 362 | |
---|
| 363 | |
---|
| 364 | nucleusSquare = cofTotal*pi*R*R; // basically 2piRR |
---|
| 365 | ratio = sigma/nucleusSquare; |
---|
| 366 | |
---|
| 367 | xsection = nucleusSquare*std::log( 1. + ratio ); |
---|
| 368 | |
---|
[962] | 369 | xsection *= GetParticleBarCorTot(theParticle, Z); |
---|
| 370 | |
---|
[819] | 371 | fTotalXsc = xsection; |
---|
| 372 | |
---|
| 373 | |
---|
| 374 | |
---|
| 375 | fInelasticXsc = nucleusSquare*std::log( 1. + cofInelastic*ratio )/cofInelastic; |
---|
| 376 | |
---|
[962] | 377 | fInelasticXsc *= GetParticleBarCorIn(theParticle, Z); |
---|
| 378 | |
---|
[819] | 379 | fElasticXsc = fTotalXsc - fInelasticXsc; |
---|
| 380 | |
---|
| 381 | |
---|
| 382 | G4double difratio = ratio/(1.+ratio); |
---|
| 383 | |
---|
| 384 | fDiffractionXsc = 0.5*nucleusSquare*( difratio - std::log( 1. + difratio ) ); |
---|
| 385 | |
---|
| 386 | |
---|
| 387 | sigma = GetHNinelasticXsc(aParticle, A, Z); |
---|
| 388 | ratio = sigma/nucleusSquare; |
---|
| 389 | |
---|
| 390 | fProductionXsc = nucleusSquare*std::log( 1. + cofInelastic*ratio )/cofInelastic; |
---|
| 391 | |
---|
| 392 | if (fElasticXsc < 0.) fElasticXsc = 0.; |
---|
| 393 | |
---|
| 394 | return xsection; |
---|
| 395 | } |
---|
| 396 | |
---|
| 397 | ////////////////////////////////////////////////////////////////////////// |
---|
| 398 | // |
---|
| 399 | // Return single-diffraction/inelastic cross-section ratio |
---|
| 400 | |
---|
| 401 | G4double G4GlauberGribovCrossSection:: |
---|
| 402 | GetRatioSD(const G4DynamicParticle* aParticle, G4double A, G4double Z) |
---|
| 403 | { |
---|
| 404 | G4double sigma, cofInelastic, cofTotal, nucleusSquare, ratio; |
---|
| 405 | G4double R = GetNucleusRadius(A); |
---|
| 406 | |
---|
| 407 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
---|
| 408 | |
---|
| 409 | if( theParticle == theProton || |
---|
| 410 | theParticle == theNeutron || |
---|
| 411 | theParticle == thePiPlus || |
---|
| 412 | theParticle == thePiMinus ) |
---|
| 413 | { |
---|
| 414 | sigma = GetHadronNucleonXscNS(aParticle, A, Z); |
---|
| 415 | cofInelastic = 2.4; |
---|
| 416 | cofTotal = 2.0; |
---|
| 417 | } |
---|
| 418 | else |
---|
| 419 | { |
---|
| 420 | sigma = GetHadronNucleonXscPDG(aParticle, A, Z); |
---|
| 421 | cofInelastic = 2.2; |
---|
| 422 | cofTotal = 2.0; |
---|
| 423 | } |
---|
| 424 | nucleusSquare = cofTotal*pi*R*R; // basically 2piRR |
---|
| 425 | ratio = sigma/nucleusSquare; |
---|
| 426 | |
---|
| 427 | fInelasticXsc = nucleusSquare*std::log( 1. + cofInelastic*ratio )/cofInelastic; |
---|
| 428 | |
---|
| 429 | G4double difratio = ratio/(1.+ratio); |
---|
| 430 | |
---|
| 431 | fDiffractionXsc = 0.5*nucleusSquare*( difratio - std::log( 1. + difratio ) ); |
---|
| 432 | |
---|
| 433 | if (fInelasticXsc > 0.) ratio = fDiffractionXsc/fInelasticXsc; |
---|
| 434 | else ratio = 0.; |
---|
| 435 | |
---|
| 436 | return ratio; |
---|
| 437 | } |
---|
| 438 | |
---|
| 439 | ////////////////////////////////////////////////////////////////////////// |
---|
| 440 | // |
---|
| 441 | // Return suasi-elastic/inelastic cross-section ratio |
---|
| 442 | |
---|
| 443 | G4double G4GlauberGribovCrossSection:: |
---|
| 444 | GetRatioQE(const G4DynamicParticle* aParticle, G4double A, G4double Z) |
---|
| 445 | { |
---|
| 446 | G4double sigma, cofInelastic, cofTotal, nucleusSquare, ratio; |
---|
| 447 | G4double R = GetNucleusRadius(A); |
---|
| 448 | |
---|
| 449 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
---|
| 450 | |
---|
| 451 | if( theParticle == theProton || |
---|
| 452 | theParticle == theNeutron || |
---|
| 453 | theParticle == thePiPlus || |
---|
| 454 | theParticle == thePiMinus ) |
---|
| 455 | { |
---|
| 456 | sigma = GetHadronNucleonXscNS(aParticle, A, Z); |
---|
| 457 | cofInelastic = 2.4; |
---|
| 458 | cofTotal = 2.0; |
---|
| 459 | } |
---|
| 460 | else |
---|
| 461 | { |
---|
| 462 | sigma = GetHadronNucleonXscPDG(aParticle, A, Z); |
---|
| 463 | cofInelastic = 2.2; |
---|
| 464 | cofTotal = 2.0; |
---|
| 465 | } |
---|
| 466 | nucleusSquare = cofTotal*pi*R*R; // basically 2piRR |
---|
| 467 | ratio = sigma/nucleusSquare; |
---|
| 468 | |
---|
| 469 | fInelasticXsc = nucleusSquare*std::log( 1. + cofInelastic*ratio )/cofInelastic; |
---|
| 470 | |
---|
| 471 | sigma = GetHNinelasticXsc(aParticle, A, Z); |
---|
| 472 | ratio = sigma/nucleusSquare; |
---|
| 473 | |
---|
| 474 | fProductionXsc = nucleusSquare*std::log( 1. + cofInelastic*ratio )/cofInelastic; |
---|
| 475 | |
---|
| 476 | if (fInelasticXsc > fProductionXsc) ratio = (fInelasticXsc-fProductionXsc)/fInelasticXsc; |
---|
| 477 | else ratio = 0.; |
---|
| 478 | if ( ratio < 0. ) ratio = 0.; |
---|
| 479 | |
---|
| 480 | return ratio; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 484 | // |
---|
| 485 | // Returns hadron-nucleon Xsc according to differnt parametrisations: |
---|
| 486 | // [2] E. Levin, hep-ph/9710546 |
---|
| 487 | // [3] U. Dersch, et al, hep-ex/9910052 |
---|
| 488 | // [4] M.J. Longo, et al, Phys.Rev.Lett. 33 (1974) 725 |
---|
| 489 | |
---|
| 490 | G4double |
---|
| 491 | G4GlauberGribovCrossSection::GetHadronNucleonXsc(const G4DynamicParticle* aParticle, |
---|
| 492 | const G4Element* anElement ) |
---|
| 493 | { |
---|
| 494 | G4double At = anElement->GetN(); // number of nucleons |
---|
| 495 | G4double Zt = anElement->GetZ(); // number of protons |
---|
| 496 | |
---|
| 497 | |
---|
| 498 | return GetHadronNucleonXsc( aParticle, At, Zt ); |
---|
| 499 | } |
---|
| 500 | |
---|
| 501 | |
---|
| 502 | |
---|
| 503 | |
---|
| 504 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 505 | // |
---|
| 506 | // Returns hadron-nucleon Xsc according to differnt parametrisations: |
---|
| 507 | // [2] E. Levin, hep-ph/9710546 |
---|
| 508 | // [3] U. Dersch, et al, hep-ex/9910052 |
---|
| 509 | // [4] M.J. Longo, et al, Phys.Rev.Lett. 33 (1974) 725 |
---|
| 510 | |
---|
| 511 | G4double |
---|
| 512 | G4GlauberGribovCrossSection::GetHadronNucleonXsc(const G4DynamicParticle* aParticle, |
---|
| 513 | G4double At, G4double Zt ) |
---|
| 514 | { |
---|
| 515 | G4double xsection; |
---|
| 516 | |
---|
| 517 | |
---|
| 518 | G4double targ_mass = G4ParticleTable::GetParticleTable()-> |
---|
| 519 | GetIonTable()->GetIonMass( G4int(Zt+0.5) , G4int(At+0.5) ); |
---|
| 520 | |
---|
| 521 | targ_mass = 0.939*GeV; // ~mean neutron and proton ??? |
---|
| 522 | |
---|
| 523 | G4double proj_mass = aParticle->GetMass(); |
---|
| 524 | G4double proj_momentum = aParticle->GetMomentum().mag(); |
---|
| 525 | G4double sMand = CalcMandelstamS ( proj_mass , targ_mass , proj_momentum ); |
---|
| 526 | |
---|
| 527 | sMand /= GeV*GeV; // in GeV for parametrisation |
---|
| 528 | proj_momentum /= GeV; |
---|
| 529 | |
---|
| 530 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
---|
| 531 | |
---|
| 532 | |
---|
| 533 | if(theParticle == theGamma) |
---|
| 534 | { |
---|
| 535 | xsection = At*(0.0677*std::pow(sMand,0.0808) + 0.129*std::pow(sMand,-0.4525)); |
---|
| 536 | } |
---|
| 537 | else if(theParticle == theNeutron) // as proton ??? |
---|
| 538 | { |
---|
| 539 | xsection = At*(21.70*std::pow(sMand,0.0808) + 56.08*std::pow(sMand,-0.4525)); |
---|
| 540 | } |
---|
| 541 | else if(theParticle == theProton) |
---|
| 542 | { |
---|
| 543 | xsection = At*(21.70*std::pow(sMand,0.0808) + 56.08*std::pow(sMand,-0.4525)); |
---|
| 544 | // xsection = At*( 49.51*std::pow(sMand,-0.097) + 0.314*std::log(sMand)*std::log(sMand) ); |
---|
| 545 | // xsection = At*( 38.4 + 0.85*std::abs(std::pow(log(sMand),1.47)) ); |
---|
| 546 | } |
---|
| 547 | else if(theParticle == theAProton) |
---|
| 548 | { |
---|
| 549 | xsection = At*( 21.70*std::pow(sMand,0.0808) + 98.39*std::pow(sMand,-0.4525)); |
---|
| 550 | } |
---|
| 551 | else if(theParticle == thePiPlus) |
---|
| 552 | { |
---|
| 553 | xsection = At*(13.63*std::pow(sMand,0.0808) + 27.56*std::pow(sMand,-0.4525)); |
---|
| 554 | } |
---|
| 555 | else if(theParticle == thePiMinus) |
---|
| 556 | { |
---|
| 557 | // xsection = At*( 55.2*std::pow(sMand,-0.255) + 0.346*std::log(sMand)*std::log(sMand) ); |
---|
| 558 | xsection = At*(13.63*std::pow(sMand,0.0808) + 36.02*std::pow(sMand,-0.4525)); |
---|
| 559 | } |
---|
| 560 | else if(theParticle == theKPlus) |
---|
| 561 | { |
---|
| 562 | xsection = At*(11.82*std::pow(sMand,0.0808) + 8.15*std::pow(sMand,-0.4525)); |
---|
| 563 | } |
---|
| 564 | else if(theParticle == theKMinus) |
---|
| 565 | { |
---|
| 566 | xsection = At*(11.82*std::pow(sMand,0.0808) + 26.36*std::pow(sMand,-0.4525)); |
---|
| 567 | } |
---|
| 568 | else // as proton ??? |
---|
| 569 | { |
---|
| 570 | xsection = At*(21.70*std::pow(sMand,0.0808) + 56.08*std::pow(sMand,-0.4525)); |
---|
| 571 | } |
---|
| 572 | xsection *= millibarn; |
---|
| 573 | return xsection; |
---|
| 574 | } |
---|
| 575 | |
---|
| 576 | |
---|
| 577 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 578 | // |
---|
| 579 | // Returns hadron-nucleon Xsc according to PDG parametrisation (2005): |
---|
| 580 | // http://pdg.lbl.gov/2006/reviews/hadronicrpp.pdf |
---|
| 581 | |
---|
| 582 | G4double |
---|
| 583 | G4GlauberGribovCrossSection::GetHadronNucleonXscPDG(const G4DynamicParticle* aParticle, |
---|
| 584 | const G4Element* anElement ) |
---|
| 585 | { |
---|
| 586 | G4double At = anElement->GetN(); // number of nucleons |
---|
| 587 | G4double Zt = anElement->GetZ(); // number of protons |
---|
| 588 | |
---|
| 589 | |
---|
| 590 | return GetHadronNucleonXscPDG( aParticle, At, Zt ); |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | |
---|
| 594 | |
---|
| 595 | |
---|
| 596 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 597 | // |
---|
| 598 | // Returns hadron-nucleon Xsc according to PDG parametrisation (2005): |
---|
| 599 | // http://pdg.lbl.gov/2006/reviews/hadronicrpp.pdf |
---|
| 600 | // At = number of nucleons, Zt = number of protons |
---|
| 601 | |
---|
| 602 | G4double |
---|
| 603 | G4GlauberGribovCrossSection::GetHadronNucleonXscPDG(const G4DynamicParticle* aParticle, |
---|
| 604 | G4double At, G4double Zt ) |
---|
| 605 | { |
---|
| 606 | G4double xsection; |
---|
| 607 | |
---|
| 608 | G4double Nt = At-Zt; // number of neutrons |
---|
| 609 | if (Nt < 0.) Nt = 0.; |
---|
| 610 | |
---|
| 611 | |
---|
| 612 | G4double targ_mass = G4ParticleTable::GetParticleTable()-> |
---|
| 613 | GetIonTable()->GetIonMass( G4int(Zt+0.5) , G4int(At+0.5) ); |
---|
| 614 | |
---|
| 615 | targ_mass = 0.939*GeV; // ~mean neutron and proton ??? |
---|
| 616 | |
---|
| 617 | G4double proj_mass = aParticle->GetMass(); |
---|
| 618 | G4double proj_momentum = aParticle->GetMomentum().mag(); |
---|
| 619 | |
---|
| 620 | G4double sMand = CalcMandelstamS ( proj_mass , targ_mass , proj_momentum ); |
---|
| 621 | |
---|
| 622 | sMand /= GeV*GeV; // in GeV for parametrisation |
---|
| 623 | |
---|
| 624 | // General PDG fit constants |
---|
| 625 | |
---|
| 626 | G4double s0 = 5.38*5.38; // in Gev^2 |
---|
| 627 | G4double eta1 = 0.458; |
---|
| 628 | G4double eta2 = 0.458; |
---|
| 629 | G4double B = 0.308; |
---|
| 630 | |
---|
| 631 | |
---|
| 632 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
---|
| 633 | |
---|
| 634 | |
---|
| 635 | if(theParticle == theNeutron) // proton-neutron fit |
---|
| 636 | { |
---|
| 637 | xsection = Zt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 638 | + 40.15*std::pow(sMand,-eta1) - 30.*std::pow(sMand,-eta2)); |
---|
| 639 | xsection += Nt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 640 | + 42.53*std::pow(sMand,-eta1) - 33.34*std::pow(sMand,-eta2)); // pp for nn |
---|
| 641 | } |
---|
| 642 | else if(theParticle == theProton) |
---|
| 643 | { |
---|
| 644 | |
---|
| 645 | xsection = Zt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 646 | + 42.53*std::pow(sMand,-eta1) - 33.34*std::pow(sMand,-eta2)); |
---|
| 647 | |
---|
| 648 | xsection += Nt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 649 | + 40.15*std::pow(sMand,-eta1) - 30.*std::pow(sMand,-eta2)); |
---|
| 650 | } |
---|
| 651 | else if(theParticle == theAProton) |
---|
| 652 | { |
---|
| 653 | xsection = Zt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 654 | + 42.53*std::pow(sMand,-eta1) + 33.34*std::pow(sMand,-eta2)); |
---|
| 655 | |
---|
| 656 | xsection += Nt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 657 | + 40.15*std::pow(sMand,-eta1) + 30.*std::pow(sMand,-eta2)); |
---|
| 658 | } |
---|
| 659 | else if(theParticle == thePiPlus) |
---|
| 660 | { |
---|
| 661 | xsection = At*( 20.86 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 662 | + 19.24*std::pow(sMand,-eta1) - 6.03*std::pow(sMand,-eta2)); |
---|
| 663 | } |
---|
| 664 | else if(theParticle == thePiMinus) |
---|
| 665 | { |
---|
| 666 | xsection = At*( 20.86 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 667 | + 19.24*std::pow(sMand,-eta1) + 6.03*std::pow(sMand,-eta2)); |
---|
| 668 | } |
---|
| 669 | else if(theParticle == theKPlus) |
---|
| 670 | { |
---|
| 671 | xsection = Zt*( 17.91 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 672 | + 7.14*std::pow(sMand,-eta1) - 13.45*std::pow(sMand,-eta2)); |
---|
| 673 | |
---|
| 674 | xsection += Nt*( 17.87 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 675 | + 5.17*std::pow(sMand,-eta1) - 7.23*std::pow(sMand,-eta2)); |
---|
| 676 | } |
---|
| 677 | else if(theParticle == theKMinus) |
---|
| 678 | { |
---|
| 679 | xsection = Zt*( 17.91 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 680 | + 7.14*std::pow(sMand,-eta1) + 13.45*std::pow(sMand,-eta2)); |
---|
| 681 | |
---|
| 682 | xsection += Nt*( 17.87 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 683 | + 5.17*std::pow(sMand,-eta1) + 7.23*std::pow(sMand,-eta2)); |
---|
| 684 | } |
---|
| 685 | else if(theParticle == theSMinus) |
---|
| 686 | { |
---|
| 687 | xsection = At*( 35.20 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 688 | - 199.*std::pow(sMand,-eta1) + 264.*std::pow(sMand,-eta2)); |
---|
| 689 | } |
---|
| 690 | else if(theParticle == theGamma) // modify later on |
---|
| 691 | { |
---|
| 692 | xsection = At*( 0.0 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 693 | + 0.032*std::pow(sMand,-eta1) - 0.0*std::pow(sMand,-eta2)); |
---|
| 694 | |
---|
| 695 | } |
---|
| 696 | else // as proton ??? |
---|
| 697 | { |
---|
| 698 | xsection = Zt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 699 | + 42.53*std::pow(sMand,-eta1) - 33.34*std::pow(sMand,-eta2)); |
---|
| 700 | |
---|
| 701 | xsection += Nt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 702 | + 40.15*std::pow(sMand,-eta1) - 30.*std::pow(sMand,-eta2)); |
---|
| 703 | } |
---|
| 704 | xsection *= millibarn; // parametrised in mb |
---|
| 705 | return xsection; |
---|
| 706 | } |
---|
| 707 | |
---|
| 708 | |
---|
| 709 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 710 | // |
---|
| 711 | // Returns hadron-nucleon cross-section based on N. Starkov parametrisation of |
---|
| 712 | // data from mainly http://wwwppds.ihep.su:8001/c5-6A.html database |
---|
| 713 | |
---|
| 714 | G4double |
---|
| 715 | G4GlauberGribovCrossSection::GetHadronNucleonXscNS(const G4DynamicParticle* aParticle, |
---|
| 716 | const G4Element* anElement ) |
---|
| 717 | { |
---|
| 718 | G4double At = anElement->GetN(); // number of nucleons |
---|
| 719 | G4double Zt = anElement->GetZ(); // number of protons |
---|
| 720 | |
---|
| 721 | |
---|
| 722 | return GetHadronNucleonXscNS( aParticle, At, Zt ); |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | |
---|
| 726 | |
---|
| 727 | |
---|
| 728 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 729 | // |
---|
| 730 | // Returns hadron-nucleon cross-section based on N. Starkov parametrisation of |
---|
| 731 | // data from mainly http://wwwppds.ihep.su:8001/c5-6A.html database |
---|
| 732 | |
---|
| 733 | G4double |
---|
| 734 | G4GlauberGribovCrossSection::GetHadronNucleonXscNS(const G4DynamicParticle* aParticle, |
---|
| 735 | G4double At, G4double Zt ) |
---|
| 736 | { |
---|
| 737 | G4double xsection(0), Delta, A0, B0; |
---|
| 738 | G4double hpXsc(0); |
---|
| 739 | G4double hnXsc(0); |
---|
| 740 | |
---|
| 741 | G4double Nt = At-Zt; // number of neutrons |
---|
| 742 | if (Nt < 0.) Nt = 0.; |
---|
| 743 | |
---|
| 744 | |
---|
| 745 | G4double targ_mass = G4ParticleTable::GetParticleTable()-> |
---|
| 746 | GetIonTable()->GetIonMass( G4int(Zt+0.5) , G4int(At+0.5) ); |
---|
| 747 | |
---|
| 748 | targ_mass = 0.939*GeV; // ~mean neutron and proton ??? |
---|
| 749 | |
---|
| 750 | G4double proj_mass = aParticle->GetMass(); |
---|
| 751 | G4double proj_energy = aParticle->GetTotalEnergy(); |
---|
| 752 | G4double proj_momentum = aParticle->GetMomentum().mag(); |
---|
| 753 | |
---|
| 754 | G4double sMand = CalcMandelstamS ( proj_mass , targ_mass , proj_momentum ); |
---|
| 755 | |
---|
| 756 | sMand /= GeV*GeV; // in GeV for parametrisation |
---|
| 757 | proj_momentum /= GeV; |
---|
| 758 | proj_energy /= GeV; |
---|
| 759 | proj_mass /= GeV; |
---|
| 760 | |
---|
| 761 | // General PDG fit constants |
---|
| 762 | |
---|
| 763 | G4double s0 = 5.38*5.38; // in Gev^2 |
---|
| 764 | G4double eta1 = 0.458; |
---|
| 765 | G4double eta2 = 0.458; |
---|
| 766 | G4double B = 0.308; |
---|
| 767 | |
---|
| 768 | |
---|
| 769 | const G4ParticleDefinition* theParticle = aParticle->GetDefinition(); |
---|
| 770 | |
---|
| 771 | |
---|
| 772 | if(theParticle == theNeutron) |
---|
| 773 | { |
---|
| 774 | if( proj_momentum >= 10.) |
---|
| 775 | // if( proj_momentum >= 2.) |
---|
| 776 | { |
---|
| 777 | Delta = 1.; |
---|
| 778 | |
---|
| 779 | if( proj_energy < 40. ) Delta = 0.916+0.0021*proj_energy; |
---|
| 780 | |
---|
| 781 | if(proj_momentum >= 10.) |
---|
| 782 | { |
---|
| 783 | B0 = 7.5; |
---|
| 784 | A0 = 100. - B0*std::log(3.0e7); |
---|
| 785 | |
---|
| 786 | xsection = A0 + B0*std::log(proj_energy) - 11 |
---|
| 787 | + 103*std::pow(2*0.93827*proj_energy + proj_mass*proj_mass+ |
---|
| 788 | 0.93827*0.93827,-0.165); // mb |
---|
| 789 | } |
---|
| 790 | xsection *= Zt + Nt; |
---|
| 791 | } |
---|
| 792 | else |
---|
| 793 | { |
---|
| 794 | // nn to be pp |
---|
| 795 | |
---|
| 796 | if( proj_momentum < 0.73 ) |
---|
| 797 | { |
---|
| 798 | hnXsc = 23 + 50*( std::pow( std::log(0.73/proj_momentum), 3.5 ) ); |
---|
| 799 | } |
---|
| 800 | else if( proj_momentum < 1.05 ) |
---|
| 801 | { |
---|
| 802 | hnXsc = 23 + 40*(std::log(proj_momentum/0.73))* |
---|
| 803 | (std::log(proj_momentum/0.73)); |
---|
| 804 | } |
---|
| 805 | else // if( proj_momentum < 10. ) |
---|
| 806 | { |
---|
| 807 | hnXsc = 39.0+ |
---|
| 808 | 75*(proj_momentum - 1.2)/(std::pow(proj_momentum,3.0) + 0.15); |
---|
| 809 | } |
---|
| 810 | // pn to be np |
---|
| 811 | |
---|
| 812 | if( proj_momentum < 0.8 ) |
---|
| 813 | { |
---|
| 814 | hpXsc = 33+30*std::pow(std::log(proj_momentum/1.3),4.0); |
---|
| 815 | } |
---|
| 816 | else if( proj_momentum < 1.4 ) |
---|
| 817 | { |
---|
| 818 | hpXsc = 33+30*std::pow(std::log(proj_momentum/0.95),2.0); |
---|
| 819 | } |
---|
| 820 | else // if( proj_momentum < 10. ) |
---|
| 821 | { |
---|
| 822 | hpXsc = 33.3+ |
---|
| 823 | 20.8*(std::pow(proj_momentum,2.0)-1.35)/ |
---|
| 824 | (std::pow(proj_momentum,2.50)+0.95); |
---|
| 825 | } |
---|
| 826 | xsection = hpXsc*Zt + hnXsc*Nt; |
---|
| 827 | } |
---|
| 828 | } |
---|
| 829 | else if(theParticle == theProton) |
---|
| 830 | { |
---|
| 831 | if( proj_momentum >= 10.) |
---|
| 832 | // if( proj_momentum >= 2.) |
---|
| 833 | { |
---|
| 834 | Delta = 1.; |
---|
| 835 | |
---|
| 836 | if( proj_energy < 40. ) Delta = 0.916+0.0021*proj_energy; |
---|
| 837 | |
---|
| 838 | if(proj_momentum >= 10.) |
---|
| 839 | { |
---|
| 840 | B0 = 7.5; |
---|
| 841 | A0 = 100. - B0*std::log(3.0e7); |
---|
| 842 | |
---|
| 843 | xsection = A0 + B0*std::log(proj_energy) - 11 |
---|
| 844 | + 103*std::pow(2*0.93827*proj_energy + proj_mass*proj_mass+ |
---|
| 845 | 0.93827*0.93827,-0.165); // mb |
---|
| 846 | } |
---|
| 847 | xsection *= Zt + Nt; |
---|
| 848 | } |
---|
| 849 | else |
---|
| 850 | { |
---|
| 851 | // pp |
---|
| 852 | |
---|
| 853 | if( proj_momentum < 0.73 ) |
---|
| 854 | { |
---|
| 855 | hpXsc = 23 + 50*( std::pow( std::log(0.73/proj_momentum), 3.5 ) ); |
---|
| 856 | } |
---|
| 857 | else if( proj_momentum < 1.05 ) |
---|
| 858 | { |
---|
| 859 | hpXsc = 23 + 40*(std::log(proj_momentum/0.73))* |
---|
| 860 | (std::log(proj_momentum/0.73)); |
---|
| 861 | } |
---|
| 862 | else // if( proj_momentum < 10. ) |
---|
| 863 | { |
---|
| 864 | hpXsc = 39.0+ |
---|
| 865 | 75*(proj_momentum - 1.2)/(std::pow(proj_momentum,3.0) + 0.15); |
---|
| 866 | } |
---|
| 867 | // pn to be np |
---|
| 868 | |
---|
| 869 | if( proj_momentum < 0.8 ) |
---|
| 870 | { |
---|
| 871 | hnXsc = 33+30*std::pow(std::log(proj_momentum/1.3),4.0); |
---|
| 872 | } |
---|
| 873 | else if( proj_momentum < 1.4 ) |
---|
| 874 | { |
---|
| 875 | hnXsc = 33+30*std::pow(std::log(proj_momentum/0.95),2.0); |
---|
| 876 | } |
---|
| 877 | else // if( proj_momentum < 10. ) |
---|
| 878 | { |
---|
| 879 | hnXsc = 33.3+ |
---|
| 880 | 20.8*(std::pow(proj_momentum,2.0)-1.35)/ |
---|
| 881 | (std::pow(proj_momentum,2.50)+0.95); |
---|
| 882 | } |
---|
| 883 | xsection = hpXsc*Zt + hnXsc*Nt; |
---|
| 884 | // xsection = hpXsc*(Zt + Nt); |
---|
| 885 | // xsection = hnXsc*(Zt + Nt); |
---|
| 886 | } |
---|
| 887 | // xsection *= 0.95; |
---|
| 888 | } |
---|
| 889 | else if(theParticle == theAProton) |
---|
| 890 | { |
---|
| 891 | xsection = Zt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 892 | + 42.53*std::pow(sMand,-eta1) + 33.34*std::pow(sMand,-eta2)); |
---|
| 893 | |
---|
| 894 | xsection += Nt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 895 | + 40.15*std::pow(sMand,-eta1) + 30.*std::pow(sMand,-eta2)); |
---|
| 896 | } |
---|
| 897 | else if(theParticle == thePiPlus) |
---|
| 898 | { |
---|
| 899 | if(proj_momentum < 0.4) |
---|
| 900 | { |
---|
| 901 | G4double Ex3 = 180*std::exp(-(proj_momentum-0.29)*(proj_momentum-0.29)/0.085/0.085); |
---|
| 902 | hpXsc = Ex3+20.0; |
---|
| 903 | } |
---|
| 904 | else if(proj_momentum < 1.15) |
---|
| 905 | { |
---|
| 906 | G4double Ex4 = 88*(std::log(proj_momentum/0.75))*(std::log(proj_momentum/0.75)); |
---|
| 907 | hpXsc = Ex4+14.0; |
---|
| 908 | } |
---|
| 909 | else if(proj_momentum < 3.5) |
---|
| 910 | { |
---|
| 911 | G4double Ex1 = 3.2*std::exp(-(proj_momentum-2.55)*(proj_momentum-2.55)/0.55/0.55); |
---|
| 912 | G4double Ex2 = 12*std::exp(-(proj_momentum-1.47)*(proj_momentum-1.47)/0.225/0.225); |
---|
| 913 | hpXsc = Ex1+Ex2+27.5; |
---|
| 914 | } |
---|
| 915 | else // if(proj_momentum > 3.5) // mb |
---|
| 916 | { |
---|
| 917 | hpXsc = 10.6+2.*std::log(proj_energy)+25*std::pow(proj_energy,-0.43); |
---|
| 918 | } |
---|
| 919 | // pi+n = pi-p?? |
---|
| 920 | |
---|
| 921 | if(proj_momentum < 0.37) |
---|
| 922 | { |
---|
| 923 | hnXsc = 28.0 + 40*std::exp(-(proj_momentum-0.29)*(proj_momentum-0.29)/0.07/0.07); |
---|
| 924 | } |
---|
| 925 | else if(proj_momentum<0.65) |
---|
| 926 | { |
---|
| 927 | hnXsc = 26+110*(std::log(proj_momentum/0.48))*(std::log(proj_momentum/0.48)); |
---|
| 928 | } |
---|
| 929 | else if(proj_momentum<1.3) |
---|
| 930 | { |
---|
| 931 | hnXsc = 36.1+ |
---|
| 932 | 10*std::exp(-(proj_momentum-0.72)*(proj_momentum-0.72)/0.06/0.06)+ |
---|
| 933 | 24*std::exp(-(proj_momentum-1.015)*(proj_momentum-1.015)/0.075/0.075); |
---|
| 934 | } |
---|
| 935 | else if(proj_momentum<3.0) |
---|
| 936 | { |
---|
| 937 | hnXsc = 36.1+0.079-4.313*std::log(proj_momentum)+ |
---|
| 938 | 3*std::exp(-(proj_momentum-2.1)*(proj_momentum-2.1)/0.4/0.4)+ |
---|
| 939 | 1.5*std::exp(-(proj_momentum-1.4)*(proj_momentum-1.4)/0.12/0.12); |
---|
| 940 | } |
---|
| 941 | else // mb |
---|
| 942 | { |
---|
| 943 | hnXsc = 10.6+2*std::log(proj_energy)+30*std::pow(proj_energy,-0.43); |
---|
| 944 | } |
---|
| 945 | xsection = hpXsc*Zt + hnXsc*Nt; |
---|
| 946 | } |
---|
| 947 | else if(theParticle == thePiMinus) |
---|
| 948 | { |
---|
| 949 | // pi-n = pi+p?? |
---|
| 950 | |
---|
| 951 | if(proj_momentum < 0.4) |
---|
| 952 | { |
---|
| 953 | G4double Ex3 = 180*std::exp(-(proj_momentum-0.29)*(proj_momentum-0.29)/0.085/0.085); |
---|
| 954 | hnXsc = Ex3+20.0; |
---|
| 955 | } |
---|
| 956 | else if(proj_momentum < 1.15) |
---|
| 957 | { |
---|
| 958 | G4double Ex4 = 88*(std::log(proj_momentum/0.75))*(std::log(proj_momentum/0.75)); |
---|
| 959 | hnXsc = Ex4+14.0; |
---|
| 960 | } |
---|
| 961 | else if(proj_momentum < 3.5) |
---|
| 962 | { |
---|
| 963 | G4double Ex1 = 3.2*std::exp(-(proj_momentum-2.55)*(proj_momentum-2.55)/0.55/0.55); |
---|
| 964 | G4double Ex2 = 12*std::exp(-(proj_momentum-1.47)*(proj_momentum-1.47)/0.225/0.225); |
---|
| 965 | hnXsc = Ex1+Ex2+27.5; |
---|
| 966 | } |
---|
| 967 | else // if(proj_momentum > 3.5) // mb |
---|
| 968 | { |
---|
| 969 | hnXsc = 10.6+2.*std::log(proj_energy)+25*std::pow(proj_energy,-0.43); |
---|
| 970 | } |
---|
| 971 | // pi-p |
---|
| 972 | |
---|
| 973 | if(proj_momentum < 0.37) |
---|
| 974 | { |
---|
| 975 | hpXsc = 28.0 + 40*std::exp(-(proj_momentum-0.29)*(proj_momentum-0.29)/0.07/0.07); |
---|
| 976 | } |
---|
| 977 | else if(proj_momentum<0.65) |
---|
| 978 | { |
---|
| 979 | hpXsc = 26+110*(std::log(proj_momentum/0.48))*(std::log(proj_momentum/0.48)); |
---|
| 980 | } |
---|
| 981 | else if(proj_momentum<1.3) |
---|
| 982 | { |
---|
| 983 | hpXsc = 36.1+ |
---|
| 984 | 10*std::exp(-(proj_momentum-0.72)*(proj_momentum-0.72)/0.06/0.06)+ |
---|
| 985 | 24*std::exp(-(proj_momentum-1.015)*(proj_momentum-1.015)/0.075/0.075); |
---|
| 986 | } |
---|
| 987 | else if(proj_momentum<3.0) |
---|
| 988 | { |
---|
| 989 | hpXsc = 36.1+0.079-4.313*std::log(proj_momentum)+ |
---|
| 990 | 3*std::exp(-(proj_momentum-2.1)*(proj_momentum-2.1)/0.4/0.4)+ |
---|
| 991 | 1.5*std::exp(-(proj_momentum-1.4)*(proj_momentum-1.4)/0.12/0.12); |
---|
| 992 | } |
---|
| 993 | else // mb |
---|
| 994 | { |
---|
| 995 | hpXsc = 10.6+2*std::log(proj_energy)+30*std::pow(proj_energy,-0.43); |
---|
| 996 | } |
---|
| 997 | xsection = hpXsc*Zt + hnXsc*Nt; |
---|
| 998 | } |
---|
| 999 | else if(theParticle == theKPlus) |
---|
| 1000 | { |
---|
| 1001 | xsection = Zt*( 17.91 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1002 | + 7.14*std::pow(sMand,-eta1) - 13.45*std::pow(sMand,-eta2)); |
---|
| 1003 | |
---|
| 1004 | xsection += Nt*( 17.87 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1005 | + 5.17*std::pow(sMand,-eta1) - 7.23*std::pow(sMand,-eta2)); |
---|
| 1006 | } |
---|
| 1007 | else if(theParticle == theKMinus) |
---|
| 1008 | { |
---|
| 1009 | xsection = Zt*( 17.91 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1010 | + 7.14*std::pow(sMand,-eta1) + 13.45*std::pow(sMand,-eta2)); |
---|
| 1011 | |
---|
| 1012 | xsection += Nt*( 17.87 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1013 | + 5.17*std::pow(sMand,-eta1) + 7.23*std::pow(sMand,-eta2)); |
---|
| 1014 | } |
---|
| 1015 | else if(theParticle == theSMinus) |
---|
| 1016 | { |
---|
| 1017 | xsection = At*( 35.20 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1018 | - 199.*std::pow(sMand,-eta1) + 264.*std::pow(sMand,-eta2)); |
---|
| 1019 | } |
---|
| 1020 | else if(theParticle == theGamma) // modify later on |
---|
| 1021 | { |
---|
| 1022 | xsection = At*( 0.0 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1023 | + 0.032*std::pow(sMand,-eta1) - 0.0*std::pow(sMand,-eta2)); |
---|
| 1024 | |
---|
| 1025 | } |
---|
| 1026 | else // as proton ??? |
---|
| 1027 | { |
---|
| 1028 | xsection = Zt*( 35.45 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1029 | + 42.53*std::pow(sMand,-eta1) - 33.34*std::pow(sMand,-eta2)); |
---|
| 1030 | |
---|
| 1031 | xsection += Nt*( 35.80 + B*std::pow(std::log(sMand/s0),2.) |
---|
| 1032 | + 40.15*std::pow(sMand,-eta1) - 30.*std::pow(sMand,-eta2)); |
---|
| 1033 | } |
---|
| 1034 | xsection *= millibarn; // parametrised in mb |
---|
| 1035 | return xsection; |
---|
| 1036 | } |
---|
| 1037 | |
---|
| 1038 | |
---|
| 1039 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1040 | // |
---|
| 1041 | // Returns hadron-nucleon inelastic cross-section based on proper parametrisation |
---|
| 1042 | |
---|
| 1043 | G4double |
---|
| 1044 | G4GlauberGribovCrossSection::GetHNinelasticXsc(const G4DynamicParticle* aParticle, |
---|
| 1045 | const G4Element* anElement ) |
---|
| 1046 | { |
---|
| 1047 | G4double At = anElement->GetN(); // number of nucleons |
---|
| 1048 | G4double Zt = anElement->GetZ(); // number of protons |
---|
| 1049 | |
---|
| 1050 | |
---|
| 1051 | return GetHNinelasticXsc( aParticle, At, Zt ); |
---|
| 1052 | } |
---|
| 1053 | |
---|
| 1054 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1055 | // |
---|
| 1056 | // Returns hadron-nucleon inelastic cross-section based on FTF-parametrisation |
---|
| 1057 | |
---|
| 1058 | G4double |
---|
| 1059 | G4GlauberGribovCrossSection::GetHNinelasticXsc(const G4DynamicParticle* aParticle, |
---|
| 1060 | G4double At, G4double Zt ) |
---|
| 1061 | { |
---|
| 1062 | G4ParticleDefinition* hadron = aParticle->GetDefinition(); |
---|
| 1063 | G4double sumInelastic, Nt = At - Zt; |
---|
| 1064 | if(Nt < 0.) Nt = 0.; |
---|
| 1065 | |
---|
| 1066 | if( hadron == theKPlus ) |
---|
| 1067 | { |
---|
| 1068 | sumInelastic = GetHNinelasticXscVU(aParticle, At, Zt); |
---|
| 1069 | } |
---|
| 1070 | else |
---|
| 1071 | { |
---|
| 1072 | sumInelastic = Zt*GetHadronNucleonXscMK(aParticle, theProton); |
---|
| 1073 | sumInelastic += Nt*GetHadronNucleonXscMK(aParticle, theNeutron); |
---|
| 1074 | } |
---|
| 1075 | return sumInelastic; |
---|
| 1076 | } |
---|
| 1077 | |
---|
| 1078 | |
---|
| 1079 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1080 | // |
---|
| 1081 | // Returns hadron-nucleon inelastic cross-section based on FTF-parametrisation |
---|
| 1082 | |
---|
| 1083 | G4double |
---|
| 1084 | G4GlauberGribovCrossSection::GetHNinelasticXscVU(const G4DynamicParticle* aParticle, |
---|
| 1085 | G4double At, G4double Zt ) |
---|
| 1086 | { |
---|
| 1087 | G4int PDGcode = aParticle->GetDefinition()->GetPDGEncoding(); |
---|
| 1088 | G4int absPDGcode = std::abs(PDGcode); |
---|
| 1089 | |
---|
| 1090 | G4double Elab = aParticle->GetTotalEnergy(); |
---|
| 1091 | // (s - 2*0.88*GeV*GeV)/(2*0.939*GeV)/GeV; |
---|
| 1092 | G4double Plab = aParticle->GetMomentum().mag(); |
---|
| 1093 | // std::sqrt(Elab * Elab - 0.88); |
---|
| 1094 | |
---|
| 1095 | Elab /= GeV; |
---|
| 1096 | Plab /= GeV; |
---|
| 1097 | |
---|
| 1098 | G4double LogPlab = std::log( Plab ); |
---|
| 1099 | G4double sqrLogPlab = LogPlab * LogPlab; |
---|
| 1100 | |
---|
| 1101 | //G4cout<<"Plab = "<<Plab<<G4endl; |
---|
| 1102 | |
---|
| 1103 | G4double NumberOfTargetProtons = Zt; |
---|
| 1104 | G4double NumberOfTargetNucleons = At; |
---|
| 1105 | G4double NumberOfTargetNeutrons = NumberOfTargetNucleons - NumberOfTargetProtons; |
---|
| 1106 | |
---|
| 1107 | if(NumberOfTargetNeutrons < 0.) NumberOfTargetNeutrons = 0.; |
---|
| 1108 | |
---|
| 1109 | G4double Xtotal, Xelastic, Xinelastic; |
---|
| 1110 | |
---|
| 1111 | if( absPDGcode > 1000 ) //------Projectile is baryon -------- |
---|
| 1112 | { |
---|
| 1113 | G4double XtotPP = 48.0 + 0. *std::pow(Plab, 0. ) + |
---|
| 1114 | 0.522*sqrLogPlab - 4.51*LogPlab; |
---|
| 1115 | |
---|
| 1116 | G4double XtotPN = 47.3 + 0. *std::pow(Plab, 0. ) + |
---|
| 1117 | 0.513*sqrLogPlab - 4.27*LogPlab; |
---|
| 1118 | |
---|
| 1119 | G4double XelPP = 11.9 + 26.9*std::pow(Plab,-1.21) + |
---|
| 1120 | 0.169*sqrLogPlab - 1.85*LogPlab; |
---|
| 1121 | |
---|
| 1122 | G4double XelPN = 11.9 + 26.9*std::pow(Plab,-1.21) + |
---|
| 1123 | 0.169*sqrLogPlab - 1.85*LogPlab; |
---|
| 1124 | |
---|
| 1125 | Xtotal = ( NumberOfTargetProtons * XtotPP + |
---|
| 1126 | NumberOfTargetNeutrons * XtotPN ); |
---|
| 1127 | |
---|
| 1128 | Xelastic = ( NumberOfTargetProtons * XelPP + |
---|
| 1129 | NumberOfTargetNeutrons * XelPN ); |
---|
| 1130 | } |
---|
| 1131 | else if( PDGcode == 211 ) //------Projectile is PionPlus ------- |
---|
| 1132 | { |
---|
| 1133 | G4double XtotPiP = 16.4 + 19.3 *std::pow(Plab,-0.42) + |
---|
| 1134 | 0.19 *sqrLogPlab - 0.0 *LogPlab; |
---|
| 1135 | |
---|
| 1136 | G4double XtotPiN = 33.0 + 14.0 *std::pow(Plab,-1.36) + |
---|
| 1137 | 0.456*sqrLogPlab - 4.03*LogPlab; |
---|
| 1138 | |
---|
| 1139 | G4double XelPiP = 0.0 + 11.4*std::pow(Plab,-0.40) + |
---|
| 1140 | 0.079*sqrLogPlab - 0.0 *LogPlab; |
---|
| 1141 | |
---|
| 1142 | G4double XelPiN = 1.76 + 11.2*std::pow(Plab,-0.64) + |
---|
| 1143 | 0.043*sqrLogPlab - 0.0 *LogPlab; |
---|
| 1144 | |
---|
| 1145 | Xtotal = ( NumberOfTargetProtons * XtotPiP + |
---|
| 1146 | NumberOfTargetNeutrons * XtotPiN ); |
---|
| 1147 | |
---|
| 1148 | Xelastic = ( NumberOfTargetProtons * XelPiP + |
---|
| 1149 | NumberOfTargetNeutrons * XelPiN ); |
---|
| 1150 | } |
---|
| 1151 | else if( PDGcode == -211 ) //------Projectile is PionMinus ------- |
---|
| 1152 | { |
---|
| 1153 | G4double XtotPiP = 33.0 + 14.0 *std::pow(Plab,-1.36) + |
---|
| 1154 | 0.456*sqrLogPlab - 4.03*LogPlab; |
---|
| 1155 | |
---|
| 1156 | G4double XtotPiN = 16.4 + 19.3 *std::pow(Plab,-0.42) + |
---|
| 1157 | 0.19 *sqrLogPlab - 0.0 *LogPlab; |
---|
| 1158 | |
---|
| 1159 | G4double XelPiP = 1.76 + 11.2*std::pow(Plab,-0.64) + |
---|
| 1160 | 0.043*sqrLogPlab - 0.0 *LogPlab; |
---|
| 1161 | |
---|
| 1162 | G4double XelPiN = 0.0 + 11.4*std::pow(Plab,-0.40) + |
---|
| 1163 | 0.079*sqrLogPlab - 0.0 *LogPlab; |
---|
| 1164 | |
---|
| 1165 | Xtotal = ( NumberOfTargetProtons * XtotPiP + |
---|
| 1166 | NumberOfTargetNeutrons * XtotPiN ); |
---|
| 1167 | |
---|
| 1168 | Xelastic = ( NumberOfTargetProtons * XelPiP + |
---|
| 1169 | NumberOfTargetNeutrons * XelPiN ); |
---|
| 1170 | } |
---|
| 1171 | else if( PDGcode == 111 ) //------Projectile is PionZero ------- |
---|
| 1172 | { |
---|
| 1173 | G4double XtotPiP =(16.4 + 19.3 *std::pow(Plab,-0.42) + |
---|
| 1174 | 0.19 *sqrLogPlab - 0.0 *LogPlab + //Pi+ |
---|
| 1175 | 33.0 + 14.0 *std::pow(Plab,-1.36) + |
---|
| 1176 | 0.456*sqrLogPlab - 4.03*LogPlab)/2; //Pi- |
---|
| 1177 | |
---|
| 1178 | G4double XtotPiN =(33.0 + 14.0 *std::pow(Plab,-1.36) + |
---|
| 1179 | 0.456*sqrLogPlab - 4.03*LogPlab + //Pi+ |
---|
| 1180 | 16.4 + 19.3 *std::pow(Plab,-0.42) + |
---|
| 1181 | 0.19 *sqrLogPlab - 0.0 *LogPlab)/2; //Pi- |
---|
| 1182 | |
---|
| 1183 | G4double XelPiP =( 0.0 + 11.4*std::pow(Plab,-0.40) + |
---|
| 1184 | 0.079*sqrLogPlab - 0.0 *LogPlab + //Pi+ |
---|
| 1185 | 1.76 + 11.2*std::pow(Plab,-0.64) + |
---|
| 1186 | 0.043*sqrLogPlab - 0.0 *LogPlab)/2; //Pi- |
---|
| 1187 | |
---|
| 1188 | G4double XelPiN =( 1.76 + 11.2*std::pow(Plab,-0.64) + |
---|
| 1189 | 0.043*sqrLogPlab - 0.0 *LogPlab + //Pi+ |
---|
| 1190 | 0.0 + 11.4*std::pow(Plab,-0.40) + |
---|
| 1191 | 0.079*sqrLogPlab - 0.0 *LogPlab)/2; //Pi- |
---|
| 1192 | |
---|
| 1193 | Xtotal = ( NumberOfTargetProtons * XtotPiP + |
---|
| 1194 | NumberOfTargetNeutrons * XtotPiN ); |
---|
| 1195 | |
---|
| 1196 | Xelastic = ( NumberOfTargetProtons * XelPiP + |
---|
| 1197 | NumberOfTargetNeutrons * XelPiN ); |
---|
| 1198 | } |
---|
| 1199 | else if( PDGcode == 321 ) //------Projectile is KaonPlus ------- |
---|
| 1200 | { |
---|
| 1201 | G4double XtotKP = 18.1 + 0. *std::pow(Plab, 0. ) + |
---|
| 1202 | 0.26 *sqrLogPlab - 1.0 *LogPlab; |
---|
| 1203 | G4double XtotKN = 18.7 + 0. *std::pow(Plab, 0. ) + |
---|
| 1204 | 0.21 *sqrLogPlab - 0.89*LogPlab; |
---|
| 1205 | |
---|
| 1206 | G4double XelKP = 5.0 + 8.1*std::pow(Plab,-1.8 ) + |
---|
| 1207 | 0.16 *sqrLogPlab - 1.3 *LogPlab; |
---|
| 1208 | |
---|
| 1209 | G4double XelKN = 7.3 + 0. *std::pow(Plab,-0. ) + |
---|
| 1210 | 0.29 *sqrLogPlab - 2.4 *LogPlab; |
---|
| 1211 | |
---|
| 1212 | Xtotal = ( NumberOfTargetProtons * XtotKP + |
---|
| 1213 | NumberOfTargetNeutrons * XtotKN ); |
---|
| 1214 | |
---|
| 1215 | Xelastic = ( NumberOfTargetProtons * XelKP + |
---|
| 1216 | NumberOfTargetNeutrons * XelKN ); |
---|
| 1217 | } |
---|
| 1218 | else if( PDGcode ==-321 ) //------Projectile is KaonMinus ------ |
---|
| 1219 | { |
---|
| 1220 | G4double XtotKP = 32.1 + 0. *std::pow(Plab, 0. ) + |
---|
| 1221 | 0.66 *sqrLogPlab - 5.6 *LogPlab; |
---|
| 1222 | G4double XtotKN = 25.2 + 0. *std::pow(Plab, 0. ) + |
---|
| 1223 | 0.38 *sqrLogPlab - 2.9 *LogPlab; |
---|
| 1224 | |
---|
| 1225 | G4double XelKP = 7.3 + 0. *std::pow(Plab,-0. ) + |
---|
| 1226 | 0.29 *sqrLogPlab - 2.4 *LogPlab; |
---|
| 1227 | |
---|
| 1228 | G4double XelKN = 5.0 + 8.1*std::pow(Plab,-1.8 ) + |
---|
| 1229 | 0.16 *sqrLogPlab - 1.3 *LogPlab; |
---|
| 1230 | |
---|
| 1231 | Xtotal = ( NumberOfTargetProtons * XtotKP + |
---|
| 1232 | NumberOfTargetNeutrons * XtotKN ); |
---|
| 1233 | |
---|
| 1234 | Xelastic = ( NumberOfTargetProtons * XelKP + |
---|
| 1235 | NumberOfTargetNeutrons * XelKN ); |
---|
| 1236 | } |
---|
| 1237 | else if( PDGcode == 311 ) //------Projectile is KaonZero ------ |
---|
| 1238 | { |
---|
| 1239 | G4double XtotKP = ( 18.1 + 0. *std::pow(Plab, 0. ) + |
---|
| 1240 | 0.26 *sqrLogPlab - 1.0 *LogPlab + //K+ |
---|
| 1241 | 32.1 + 0. *std::pow(Plab, 0. ) + |
---|
| 1242 | 0.66 *sqrLogPlab - 5.6 *LogPlab)/2; //K- |
---|
| 1243 | |
---|
| 1244 | G4double XtotKN = ( 18.7 + 0. *std::pow(Plab, 0. ) + |
---|
| 1245 | 0.21 *sqrLogPlab - 0.89*LogPlab + //K+ |
---|
| 1246 | 25.2 + 0. *std::pow(Plab, 0. ) + |
---|
| 1247 | 0.38 *sqrLogPlab - 2.9 *LogPlab)/2; //K- |
---|
| 1248 | |
---|
| 1249 | G4double XelKP = ( 5.0 + 8.1*std::pow(Plab,-1.8 ) |
---|
| 1250 | + 0.16 *sqrLogPlab - 1.3 *LogPlab + //K+ |
---|
| 1251 | 7.3 + 0. *std::pow(Plab,-0. ) + |
---|
| 1252 | 0.29 *sqrLogPlab - 2.4 *LogPlab)/2; //K- |
---|
| 1253 | |
---|
| 1254 | G4double XelKN = ( 7.3 + 0. *std::pow(Plab,-0. ) + |
---|
| 1255 | 0.29 *sqrLogPlab - 2.4 *LogPlab + //K+ |
---|
| 1256 | 5.0 + 8.1*std::pow(Plab,-1.8 ) + |
---|
| 1257 | 0.16 *sqrLogPlab - 1.3 *LogPlab)/2; //K- |
---|
| 1258 | |
---|
| 1259 | Xtotal = ( NumberOfTargetProtons * XtotKP + |
---|
| 1260 | NumberOfTargetNeutrons * XtotKN ); |
---|
| 1261 | |
---|
| 1262 | Xelastic = ( NumberOfTargetProtons * XelKP + |
---|
| 1263 | NumberOfTargetNeutrons * XelKN ); |
---|
| 1264 | } |
---|
| 1265 | else //------Projectile is undefined, Nucleon assumed |
---|
| 1266 | { |
---|
| 1267 | G4double XtotPP = 48.0 + 0. *std::pow(Plab, 0. ) + |
---|
| 1268 | 0.522*sqrLogPlab - 4.51*LogPlab; |
---|
| 1269 | |
---|
| 1270 | G4double XtotPN = 47.3 + 0. *std::pow(Plab, 0. ) + |
---|
| 1271 | 0.513*sqrLogPlab - 4.27*LogPlab; |
---|
| 1272 | |
---|
| 1273 | G4double XelPP = 11.9 + 26.9*std::pow(Plab,-1.21) + |
---|
| 1274 | 0.169*sqrLogPlab - 1.85*LogPlab; |
---|
| 1275 | G4double XelPN = 11.9 + 26.9*std::pow(Plab,-1.21) + |
---|
| 1276 | 0.169*sqrLogPlab - 1.85*LogPlab; |
---|
| 1277 | |
---|
| 1278 | Xtotal = ( NumberOfTargetProtons * XtotPP + |
---|
| 1279 | NumberOfTargetNeutrons * XtotPN ); |
---|
| 1280 | |
---|
| 1281 | Xelastic = ( NumberOfTargetProtons * XelPP + |
---|
| 1282 | NumberOfTargetNeutrons * XelPN ); |
---|
| 1283 | } |
---|
| 1284 | Xinelastic = Xtotal - Xelastic; |
---|
| 1285 | |
---|
| 1286 | if(Xinelastic < 0.) Xinelastic = 0.; |
---|
| 1287 | |
---|
| 1288 | return Xinelastic*= millibarn; |
---|
| 1289 | } |
---|
| 1290 | |
---|
| 1291 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1292 | // |
---|
| 1293 | // Returns hadron-nucleon cross-section based on Mikhail Kossov CHIPS parametrisation of |
---|
| 1294 | // data from G4QuasiFreeRatios class |
---|
| 1295 | |
---|
| 1296 | G4double |
---|
| 1297 | G4GlauberGribovCrossSection::GetHadronNucleonXscMK(const G4DynamicParticle* aParticle, |
---|
| 1298 | const G4ParticleDefinition* nucleon ) |
---|
| 1299 | { |
---|
| 1300 | G4int I = -1; |
---|
| 1301 | G4int PDG = aParticle->GetDefinition()->GetPDGEncoding(); |
---|
| 1302 | G4double totalXsc = 0; |
---|
| 1303 | G4double elasticXsc = 0; |
---|
| 1304 | G4double inelasticXsc; |
---|
| 1305 | // G4int absPDG = std::abs(PDG); |
---|
| 1306 | |
---|
| 1307 | G4double p = aParticle->GetMomentum().mag()/GeV; |
---|
| 1308 | |
---|
| 1309 | G4bool F = false; |
---|
| 1310 | if(nucleon == theProton) F = true; |
---|
| 1311 | else if(nucleon == theNeutron) F = false; |
---|
| 1312 | else |
---|
| 1313 | { |
---|
| 1314 | G4cout << "nucleon is not proton or neutron, return xsc for proton" << G4endl; |
---|
| 1315 | F = true; |
---|
| 1316 | } |
---|
| 1317 | |
---|
| 1318 | G4bool kfl = true; // Flag of K0/aK0 oscillation |
---|
| 1319 | G4bool kf = false; |
---|
| 1320 | |
---|
| 1321 | if( PDG == 130 || PDG == 310 ) |
---|
| 1322 | { |
---|
| 1323 | kf = true; |
---|
| 1324 | if( G4UniformRand() > .5 ) kfl = false; |
---|
| 1325 | } |
---|
| 1326 | if ( (PDG == 2212 && F) || (PDG == 2112 && !F) ) I = 0; // pp/nn |
---|
| 1327 | else if( (PDG == 2112 && F) || (PDG == 2212 && !F) ) I = 1; // np/pn |
---|
| 1328 | |
---|
| 1329 | else if( (PDG == -211 && F) || (PDG == 211 && !F) ) I = 2; // pimp/pipn |
---|
| 1330 | else if( (PDG == 211 && F) || (PDG ==-211 && !F) ) I = 3; // pipp/pimn |
---|
| 1331 | |
---|
| 1332 | else if( PDG == -321 || PDG == -311 || ( kf && !kfl ) ) I = 4; // KmN/K0N |
---|
| 1333 | else if( PDG == 321 || PDG == 311 || ( kf && kfl ) ) I = 5; // KpN/aK0N |
---|
| 1334 | |
---|
| 1335 | else if( PDG > 3000 && PDG < 3335) I = 6; // @@ for all hyperons - take Lambda |
---|
| 1336 | else if( PDG < -2000 && PDG > -3335) I = 7; // @@ for all anti-baryons - anti-p/anti-n |
---|
| 1337 | else |
---|
| 1338 | { |
---|
| 1339 | G4cout<<"MK PDG = "<<PDG |
---|
| 1340 | <<", while it is defined only for p,n,hyperons,anti-baryons,pi,K/antiK"<<G4endl; |
---|
| 1341 | G4Exception("G4QuasiFreeRatio::FetchElTot:","22",FatalException,"CHIPScrash"); |
---|
| 1342 | } |
---|
| 1343 | |
---|
| 1344 | // Each parameter set can have not more than nPoints = 128 parameters |
---|
| 1345 | |
---|
| 1346 | static const G4double lmi = 3.5; // min of (lnP-lmi)^2 parabola |
---|
| 1347 | static const G4double pbe = .0557; // elastic (lnP-lmi)^2 parabola coefficient |
---|
| 1348 | static const G4double pbt = .3; // total (lnP-lmi)^2 parabola coefficient |
---|
| 1349 | static const G4double pmi = .1; // Below that fast LE calculation is made |
---|
| 1350 | static const G4double pma = 1000.; // Above that fast HE calculation is made |
---|
| 1351 | |
---|
| 1352 | if( p <= 0.) |
---|
| 1353 | { |
---|
| 1354 | G4cout<<" p = "<<p<<" is zero or negative"<<G4endl; |
---|
| 1355 | |
---|
| 1356 | elasticXsc = 0.; |
---|
| 1357 | inelasticXsc = 0.; |
---|
| 1358 | totalXsc = 0.; |
---|
| 1359 | |
---|
| 1360 | return totalXsc; |
---|
| 1361 | } |
---|
| 1362 | if (!I) // pp/nn |
---|
| 1363 | { |
---|
| 1364 | if( p < pmi ) |
---|
| 1365 | { |
---|
| 1366 | G4double p2 = p*p; |
---|
| 1367 | elasticXsc = 1./(.00012 + p2*.2); |
---|
| 1368 | totalXsc = elasticXsc; |
---|
| 1369 | } |
---|
| 1370 | else if(p>pma) |
---|
| 1371 | { |
---|
| 1372 | G4double lp = std::log(p)-lmi; |
---|
| 1373 | G4double lp2 = lp*lp; |
---|
| 1374 | elasticXsc = pbe*lp2 + 6.72; |
---|
| 1375 | totalXsc = pbt*lp2 + 38.2; |
---|
| 1376 | } |
---|
| 1377 | else |
---|
| 1378 | { |
---|
| 1379 | G4double p2 = p*p; |
---|
| 1380 | G4double LE = 1./( .00012 + p2*.2); |
---|
| 1381 | G4double lp = std::log(p) - lmi; |
---|
| 1382 | G4double lp2 = lp*lp; |
---|
| 1383 | G4double rp2 = 1./p2; |
---|
| 1384 | elasticXsc = LE + ( pbe*lp2 + 6.72+32.6/p)/( 1. + rp2/p); |
---|
| 1385 | totalXsc = LE + ( pbt*lp2 + 38.2+52.7*rp2)/( 1. + 2.72*rp2*rp2); |
---|
| 1386 | } |
---|
| 1387 | } |
---|
| 1388 | else if( I==1 ) // np/pn |
---|
| 1389 | { |
---|
| 1390 | if( p < pmi ) |
---|
| 1391 | { |
---|
| 1392 | G4double p2 = p*p; |
---|
| 1393 | elasticXsc = 1./( .00012 + p2*( .051 + .1*p2)); |
---|
| 1394 | totalXsc = elasticXsc; |
---|
| 1395 | } |
---|
| 1396 | else if( p > pma ) |
---|
| 1397 | { |
---|
| 1398 | G4double lp = std::log(p) - lmi; |
---|
| 1399 | G4double lp2 = lp*lp; |
---|
| 1400 | elasticXsc = pbe*lp2 + 6.72; |
---|
| 1401 | totalXsc = pbt*lp2 + 38.2; |
---|
| 1402 | } |
---|
| 1403 | else |
---|
| 1404 | { |
---|
| 1405 | G4double p2 = p*p; |
---|
| 1406 | G4double LE = 1./( .00012 + p2*( .051 + .1*p2 ) ); |
---|
| 1407 | G4double lp = std::log(p) - lmi; |
---|
| 1408 | G4double lp2 = lp*lp; |
---|
| 1409 | G4double rp2 = 1./p2; |
---|
| 1410 | elasticXsc = LE + (pbe*lp2 + 6.72 + 30./p)/( 1. + .49*rp2/p); |
---|
| 1411 | totalXsc = LE + (pbt*lp2 + 38.2)/( 1. + .54*rp2*rp2); |
---|
| 1412 | } |
---|
| 1413 | } |
---|
| 1414 | else if( I == 2 ) // pimp/pipn |
---|
| 1415 | { |
---|
| 1416 | G4double lp = std::log(p); |
---|
| 1417 | |
---|
| 1418 | if(p<pmi) |
---|
| 1419 | { |
---|
| 1420 | G4double lr = lp + 1.27; |
---|
| 1421 | elasticXsc = 1.53/( lr*lr + .0676); |
---|
| 1422 | totalXsc = elasticXsc*3; |
---|
| 1423 | } |
---|
| 1424 | else if( p > pma ) |
---|
| 1425 | { |
---|
| 1426 | G4double ld = lp - lmi; |
---|
| 1427 | G4double ld2 = ld*ld; |
---|
| 1428 | G4double sp = std::sqrt(p); |
---|
| 1429 | elasticXsc = pbe*ld2 + 2.4 + 7./sp; |
---|
| 1430 | totalXsc = pbt*ld2 + 22.3 + 12./sp; |
---|
| 1431 | } |
---|
| 1432 | else |
---|
| 1433 | { |
---|
| 1434 | G4double lr = lp + 1.27; |
---|
| 1435 | G4double LE = 1.53/( lr*lr + .0676); |
---|
| 1436 | G4double ld = lp - lmi; |
---|
| 1437 | G4double ld2 = ld*ld; |
---|
| 1438 | G4double p2 = p*p; |
---|
| 1439 | G4double p4 = p2*p2; |
---|
| 1440 | G4double sp = std::sqrt(p); |
---|
| 1441 | G4double lm = lp + .36; |
---|
| 1442 | G4double md = lm*lm + .04; |
---|
| 1443 | G4double lh = lp - .017; |
---|
| 1444 | G4double hd = lh*lh + .0025; |
---|
| 1445 | elasticXsc = LE + (pbe*ld2 + 2.4 + 7./sp)/( 1. + .7/p4) + .6/md + .05/hd; |
---|
| 1446 | totalXsc = LE*3 + (pbt*ld2 + 22.3 + 12./sp)/(1. + .4/p4) + 1./md + .06/hd; |
---|
| 1447 | } |
---|
| 1448 | } |
---|
| 1449 | else if( I == 3 ) // pipp/pimn |
---|
| 1450 | { |
---|
| 1451 | G4double lp = std::log(p); |
---|
| 1452 | |
---|
| 1453 | if( p < pmi ) |
---|
| 1454 | { |
---|
| 1455 | G4double lr = lp + 1.27; |
---|
| 1456 | G4double lr2 = lr*lr; |
---|
| 1457 | elasticXsc = 13./( lr2 + lr2*lr2 + .0676); |
---|
| 1458 | totalXsc = elasticXsc; |
---|
| 1459 | } |
---|
| 1460 | else if( p > pma ) |
---|
| 1461 | { |
---|
| 1462 | G4double ld = lp - lmi; |
---|
| 1463 | G4double ld2 = ld*ld; |
---|
| 1464 | G4double sp = std::sqrt(p); |
---|
| 1465 | elasticXsc = pbe*ld2 + 2.4 + 6./sp; |
---|
| 1466 | totalXsc = pbt*ld2 + 22.3 + 5./sp; |
---|
| 1467 | } |
---|
| 1468 | else |
---|
| 1469 | { |
---|
| 1470 | G4double lr = lp + 1.27; |
---|
| 1471 | G4double lr2 = lr*lr; |
---|
| 1472 | G4double LE = 13./(lr2 + lr2*lr2 + .0676); |
---|
| 1473 | G4double ld = lp - lmi; |
---|
| 1474 | G4double ld2 = ld*ld; |
---|
| 1475 | G4double p2 = p*p; |
---|
| 1476 | G4double p4 = p2*p2; |
---|
| 1477 | G4double sp = std::sqrt(p); |
---|
| 1478 | G4double lm = lp - .32; |
---|
| 1479 | G4double md = lm*lm + .0576; |
---|
| 1480 | elasticXsc = LE + (pbe*ld2 + 2.4 + 6./sp)/(1. + 3./p4) + .7/md; |
---|
| 1481 | totalXsc = LE + (pbt*ld2 + 22.3 + 5./sp)/(1. + 1./p4) + .8/md; |
---|
| 1482 | } |
---|
| 1483 | } |
---|
| 1484 | else if( I == 4 ) // Kmp/Kmn/K0p/K0n |
---|
| 1485 | { |
---|
| 1486 | if( p < pmi) |
---|
| 1487 | { |
---|
| 1488 | G4double psp = p*std::sqrt(p); |
---|
| 1489 | elasticXsc = 5.2/psp; |
---|
| 1490 | totalXsc = 14./psp; |
---|
| 1491 | } |
---|
| 1492 | else if( p > pma ) |
---|
| 1493 | { |
---|
| 1494 | G4double ld = std::log(p) - lmi; |
---|
| 1495 | G4double ld2 = ld*ld; |
---|
| 1496 | elasticXsc = pbe*ld2 + 2.23; |
---|
| 1497 | totalXsc = pbt*ld2 + 19.5; |
---|
| 1498 | } |
---|
| 1499 | else |
---|
| 1500 | { |
---|
| 1501 | G4double ld = std::log(p) - lmi; |
---|
| 1502 | G4double ld2 = ld*ld; |
---|
| 1503 | G4double sp = std::sqrt(p); |
---|
| 1504 | G4double psp = p*sp; |
---|
| 1505 | G4double p2 = p*p; |
---|
| 1506 | G4double p4 = p2*p2; |
---|
| 1507 | G4double lm = p - .39; |
---|
| 1508 | G4double md = lm*lm + .000156; |
---|
| 1509 | G4double lh = p - 1.; |
---|
| 1510 | G4double hd = lh*lh + .0156; |
---|
| 1511 | elasticXsc = 5.2/psp + (pbe*ld2 + 2.23)/(1. - .7/sp + .075/p4) + .004/md + .15/hd; |
---|
| 1512 | totalXsc = 14./psp + (pbt*ld2 + 19.5)/(1. - .21/sp + .52/p4) + .006/md + .30/hd; |
---|
| 1513 | } |
---|
| 1514 | } |
---|
| 1515 | else if( I == 5 ) // Kpp/Kpn/aKp/aKn |
---|
| 1516 | { |
---|
| 1517 | if( p < pmi ) |
---|
| 1518 | { |
---|
| 1519 | G4double lr = p - .38; |
---|
| 1520 | G4double lm = p - 1.; |
---|
| 1521 | G4double md = lm*lm + .372; |
---|
| 1522 | elasticXsc = .7/(lr*lr + .0676) + 2./md; |
---|
| 1523 | totalXsc = elasticXsc + .6/md; |
---|
| 1524 | } |
---|
| 1525 | else if( p > pma ) |
---|
| 1526 | { |
---|
| 1527 | G4double ld = std::log(p) - lmi; |
---|
| 1528 | G4double ld2 = ld*ld; |
---|
| 1529 | elasticXsc = pbe*ld2 + 2.23; |
---|
| 1530 | totalXsc = pbt*ld2 + 19.5; |
---|
| 1531 | } |
---|
| 1532 | else |
---|
| 1533 | { |
---|
| 1534 | G4double ld = std::log(p) - lmi; |
---|
| 1535 | G4double ld2 = ld*ld; |
---|
| 1536 | G4double lr = p - .38; |
---|
| 1537 | G4double LE = .7/(lr*lr + .0676); |
---|
| 1538 | G4double sp = std::sqrt(p); |
---|
| 1539 | G4double p2 = p*p; |
---|
| 1540 | G4double p4 = p2*p2; |
---|
| 1541 | G4double lm = p - 1.; |
---|
| 1542 | G4double md = lm*lm + .372; |
---|
| 1543 | elasticXsc = LE + (pbe*ld2 + 2.23)/(1. - .7/sp + .1/p4) + 2./md; |
---|
| 1544 | totalXsc = LE + (pbt*ld2 + 19.5)/(1. + .46/sp + 1.6/p4) + 2.6/md; |
---|
| 1545 | } |
---|
| 1546 | } |
---|
| 1547 | else if( I == 6 ) // hyperon-N |
---|
| 1548 | { |
---|
| 1549 | if( p < pmi ) |
---|
| 1550 | { |
---|
| 1551 | G4double p2 = p*p; |
---|
| 1552 | elasticXsc = 1./(.002 + p2*(.12 + p2)); |
---|
| 1553 | totalXsc = elasticXsc; |
---|
| 1554 | } |
---|
| 1555 | else if( p > pma ) |
---|
| 1556 | { |
---|
| 1557 | G4double lp = std::log(p) - lmi; |
---|
| 1558 | G4double lp2 = lp*lp; |
---|
| 1559 | G4double sp = std::sqrt(p); |
---|
| 1560 | elasticXsc = (pbe*lp2 + 6.72)/(1. + 2./sp); |
---|
| 1561 | totalXsc = (pbt*lp2 + 38.2 + 900./sp)/(1. + 27./sp); |
---|
| 1562 | } |
---|
| 1563 | else |
---|
| 1564 | { |
---|
| 1565 | G4double p2 = p*p; |
---|
| 1566 | G4double LE = 1./(.002 + p2*(.12 + p2)); |
---|
| 1567 | G4double lp = std::log(p) - lmi; |
---|
| 1568 | G4double lp2 = lp*lp; |
---|
| 1569 | G4double p4 = p2*p2; |
---|
| 1570 | G4double sp = std::sqrt(p); |
---|
| 1571 | elasticXsc = LE + (pbe*lp2 + 6.72 + 99./p2)/(1. + 2./sp + 2./p4); |
---|
| 1572 | totalXsc = LE + (pbt*lp2 + 38.2 + 900./sp)/(1. + 27./sp + 3./p4); |
---|
| 1573 | } |
---|
| 1574 | } |
---|
| 1575 | else if( I == 7 ) // antibaryon-N |
---|
| 1576 | { |
---|
| 1577 | if( p > pma ) |
---|
| 1578 | { |
---|
| 1579 | G4double lp = std::log(p) - lmi; |
---|
| 1580 | G4double lp2 = lp*lp; |
---|
| 1581 | elasticXsc = pbe*lp2 + 6.72; |
---|
| 1582 | totalXsc = pbt*lp2 + 38.2; |
---|
| 1583 | } |
---|
| 1584 | else |
---|
| 1585 | { |
---|
| 1586 | G4double ye = std::pow(p, 1.25); |
---|
| 1587 | G4double yt = std::pow(p, .35); |
---|
| 1588 | G4double lp = std::log(p) - lmi; |
---|
| 1589 | G4double lp2 = lp*lp; |
---|
| 1590 | elasticXsc = 80./(ye + 1.) + pbe*lp2 + 6.72; |
---|
| 1591 | totalXsc = (80./yt + .3)/yt +pbt*lp2 + 38.2; |
---|
| 1592 | } |
---|
| 1593 | } |
---|
| 1594 | else |
---|
| 1595 | { |
---|
| 1596 | G4cout<<"PDG incoding = "<<I<<" is not defined (0-7)"<<G4endl; |
---|
| 1597 | |
---|
| 1598 | } |
---|
| 1599 | if( elasticXsc > totalXsc ) elasticXsc = totalXsc; |
---|
| 1600 | |
---|
| 1601 | totalXsc *= millibarn; |
---|
| 1602 | elasticXsc *= millibarn; |
---|
| 1603 | inelasticXsc = totalXsc - elasticXsc; |
---|
| 1604 | if (inelasticXsc < 0.) inelasticXsc = 0.; |
---|
| 1605 | |
---|
| 1606 | return inelasticXsc; |
---|
| 1607 | } |
---|
| 1608 | |
---|
| 1609 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1610 | // |
---|
| 1611 | // |
---|
| 1612 | |
---|
| 1613 | G4double |
---|
| 1614 | G4GlauberGribovCrossSection::GetNucleusRadius( const G4DynamicParticle* , |
---|
| 1615 | const G4Element* anElement) |
---|
| 1616 | { |
---|
| 1617 | G4double At = anElement->GetN(); |
---|
| 1618 | G4double oneThird = 1.0/3.0; |
---|
| 1619 | G4double cubicrAt = std::pow (At, oneThird); |
---|
| 1620 | |
---|
| 1621 | |
---|
| 1622 | G4double R; // = fRadiusConst*cubicrAt; |
---|
| 1623 | /* |
---|
| 1624 | G4double tmp = std::pow( cubicrAt-1., 3.); |
---|
| 1625 | tmp += At; |
---|
| 1626 | tmp *= 0.5; |
---|
| 1627 | |
---|
| 1628 | if (At > 20.) // 20. |
---|
| 1629 | { |
---|
| 1630 | R = fRadiusConst*std::pow (tmp, oneThird); |
---|
| 1631 | } |
---|
| 1632 | else |
---|
| 1633 | { |
---|
| 1634 | R = fRadiusConst*cubicrAt; |
---|
| 1635 | } |
---|
| 1636 | */ |
---|
| 1637 | |
---|
| 1638 | R = fRadiusConst*cubicrAt; |
---|
| 1639 | |
---|
| 1640 | // return R; // !!!! |
---|
| 1641 | |
---|
| 1642 | |
---|
| 1643 | |
---|
| 1644 | G4double meanA = 21.; |
---|
| 1645 | |
---|
| 1646 | G4double tauA1 = 40.; |
---|
| 1647 | G4double tauA2 = 10.; |
---|
| 1648 | G4double tauA3 = 5.; |
---|
| 1649 | |
---|
| 1650 | G4double a1 = 0.85; |
---|
| 1651 | G4double b1 = 1. - a1; |
---|
| 1652 | |
---|
| 1653 | G4double b2 = 0.3; |
---|
| 1654 | G4double b3 = 4.; |
---|
| 1655 | |
---|
| 1656 | if (At > 20.) // 20. |
---|
| 1657 | { |
---|
| 1658 | R *= ( a1 + b1*std::exp( -(At - meanA)/tauA1) ); |
---|
| 1659 | } |
---|
| 1660 | else if (At > 3.5) |
---|
| 1661 | { |
---|
| 1662 | R *= ( 1.0 + b2*( 1. - std::exp( (At - meanA)/tauA2) ) ); |
---|
| 1663 | } |
---|
| 1664 | else |
---|
| 1665 | { |
---|
| 1666 | R *= ( 1.0 + b3*( 1. - std::exp( (At - meanA)/tauA3) ) ); |
---|
| 1667 | } |
---|
| 1668 | return R; |
---|
| 1669 | |
---|
| 1670 | } |
---|
| 1671 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1672 | // |
---|
| 1673 | // |
---|
| 1674 | |
---|
| 1675 | G4double |
---|
| 1676 | G4GlauberGribovCrossSection::GetNucleusRadius(G4double At) |
---|
| 1677 | { |
---|
| 1678 | G4double oneThird = 1.0/3.0; |
---|
| 1679 | G4double cubicrAt = std::pow (At, oneThird); |
---|
| 1680 | |
---|
| 1681 | |
---|
| 1682 | G4double R; // = fRadiusConst*cubicrAt; |
---|
| 1683 | |
---|
| 1684 | /* |
---|
| 1685 | G4double tmp = std::pow( cubicrAt-1., 3.); |
---|
| 1686 | tmp += At; |
---|
| 1687 | tmp *= 0.5; |
---|
| 1688 | |
---|
| 1689 | if (At > 20.) |
---|
| 1690 | { |
---|
| 1691 | R = fRadiusConst*std::pow (tmp, oneThird); |
---|
| 1692 | } |
---|
| 1693 | else |
---|
| 1694 | { |
---|
| 1695 | R = fRadiusConst*cubicrAt; |
---|
| 1696 | } |
---|
| 1697 | */ |
---|
| 1698 | |
---|
| 1699 | R = fRadiusConst*cubicrAt; |
---|
| 1700 | |
---|
| 1701 | G4double meanA = 20.; |
---|
| 1702 | G4double tauA = 20.; |
---|
| 1703 | |
---|
| 1704 | if (At > 20.) // 20. |
---|
| 1705 | { |
---|
| 1706 | R *= ( 0.8 + 0.2*std::exp( -(At - meanA)/tauA) ); |
---|
| 1707 | } |
---|
| 1708 | else |
---|
| 1709 | { |
---|
| 1710 | R *= ( 1.0 + 0.1*( 1. - std::exp( (At - meanA)/tauA) ) ); |
---|
| 1711 | } |
---|
| 1712 | |
---|
| 1713 | return R; |
---|
| 1714 | } |
---|
| 1715 | |
---|
| 1716 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1717 | // |
---|
| 1718 | // |
---|
| 1719 | |
---|
| 1720 | G4double G4GlauberGribovCrossSection::CalculateEcmValue( const G4double mp , |
---|
| 1721 | const G4double mt , |
---|
| 1722 | const G4double Plab ) |
---|
| 1723 | { |
---|
| 1724 | G4double Elab = std::sqrt ( mp * mp + Plab * Plab ); |
---|
| 1725 | G4double Ecm = std::sqrt ( mp * mp + mt * mt + 2 * Elab * mt ); |
---|
| 1726 | // G4double Pcm = Plab * mt / Ecm; |
---|
| 1727 | // G4double KEcm = std::sqrt ( Pcm * Pcm + mp * mp ) - mp; |
---|
| 1728 | |
---|
| 1729 | return Ecm ; // KEcm; |
---|
| 1730 | } |
---|
| 1731 | |
---|
| 1732 | |
---|
| 1733 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1734 | // |
---|
| 1735 | // |
---|
| 1736 | |
---|
| 1737 | G4double G4GlauberGribovCrossSection::CalcMandelstamS( const G4double mp , |
---|
| 1738 | const G4double mt , |
---|
| 1739 | const G4double Plab ) |
---|
| 1740 | { |
---|
| 1741 | G4double Elab = std::sqrt ( mp * mp + Plab * Plab ); |
---|
| 1742 | G4double sMand = mp*mp + mt*mt + 2*Elab*mt ; |
---|
| 1743 | |
---|
| 1744 | return sMand; |
---|
| 1745 | } |
---|
| 1746 | |
---|
| 1747 | |
---|
| 1748 | // |
---|
| 1749 | // |
---|
| 1750 | /////////////////////////////////////////////////////////////////////////////////////// |
---|