[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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| 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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[962] | 27 | // $Id: G4QElasticCrossSection.cc,v 1.36 2008/03/21 21:42:44 dennis Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[819] | 29 | // |
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| 30 | // |
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| 31 | // G4 Physics class: G4QElasticCrossSection for N+A elastic cross sections |
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| 32 | // Created: M.V. Kossov, CERN/ITEP(Moscow), 10-OCT-01 |
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| 33 | // The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Oct-06 |
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| 34 | // |
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| 35 | //================================================================================ |
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| 36 | |
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| 37 | //#define debug |
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| 38 | //#define isodebug |
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| 39 | //#define pdebug |
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| 40 | //#define ppdebug |
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| 41 | //#define tdebug |
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| 42 | //#define sdebug |
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| 43 | |
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| 44 | #include "G4QElasticCrossSection.hh" |
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| 45 | |
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| 46 | // Initialization of the static parameters |
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| 47 | const G4int G4QElasticCrossSection::nPoints=128;//#of points in the AMDB tables(>anyPar)(D) |
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| 48 | const G4int G4QElasticCrossSection::nLast=nPoints-1; // the Last element in the table (D) |
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| 49 | G4double G4QElasticCrossSection::lPMin=-8.; // Min tabulated logarithmic Momentum (D) |
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| 50 | G4double G4QElasticCrossSection::lPMax= 8.; // Max tabulated logarithmic Momentum (D) |
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| 51 | G4double G4QElasticCrossSection::dlnP=(lPMax-lPMin)/nLast;// Log step in the table (D) |
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| 52 | G4bool G4QElasticCrossSection::onlyCS=true;// Flag to calculate only CS (not Si/Bi) (L) |
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| 53 | G4double G4QElasticCrossSection::lastSIG=0.; // Last calculated cross section (L) |
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| 54 | G4double G4QElasticCrossSection::lastLP=-10.;// Last log(mom_of_the_incident_hadron) (L) |
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| 55 | G4double G4QElasticCrossSection::lastTM=0.; // Last t_maximum (L) |
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| 56 | G4double G4QElasticCrossSection::theSS=0.; // The Last sq.slope of first difruction (L) |
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| 57 | G4double G4QElasticCrossSection::theS1=0.; // The Last mantissa of first difruction (L) |
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| 58 | G4double G4QElasticCrossSection::theB1=0.; // The Last slope of first difruction (L) |
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| 59 | G4double G4QElasticCrossSection::theS2=0.; // The Last mantissa of second difruction (L) |
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| 60 | G4double G4QElasticCrossSection::theB2=0.; // The Last slope of second difruction (L) |
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| 61 | G4double G4QElasticCrossSection::theS3=0.; // The Last mantissa of third difruction (L) |
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| 62 | G4double G4QElasticCrossSection::theB3=0.; // The Last slope of third difruction (L) |
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| 63 | G4double G4QElasticCrossSection::theS4=0.; // The Last mantissa of 4-th difruction (L) |
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| 64 | G4double G4QElasticCrossSection::theB4=0.; // The Last slope of 4-th difruction (L) |
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| 65 | G4int G4QElasticCrossSection::lastTZ=0; // Last atomic number of the target |
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| 66 | G4int G4QElasticCrossSection::lastTN=0; // Last number of neutrons of the target |
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| 67 | G4double G4QElasticCrossSection::lastPIN=0.; // Last initialized max momentum |
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| 68 | G4double* G4QElasticCrossSection::lastCST=0; // Elastic cross-section table |
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| 69 | G4double* G4QElasticCrossSection::lastPAR=0; // Parameters for functional calculation |
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| 70 | G4double* G4QElasticCrossSection::lastSST=0; // E-dep of sq.slope of the first difruction |
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| 71 | G4double* G4QElasticCrossSection::lastS1T=0; // E-dep of mantissa of the first difruction |
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| 72 | G4double* G4QElasticCrossSection::lastB1T=0; // E-dep of the slope of the first difruction |
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| 73 | G4double* G4QElasticCrossSection::lastS2T=0; // E-dep of mantissa of the second difruction |
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| 74 | G4double* G4QElasticCrossSection::lastB2T=0; // E-dep of the slope of theSecond difruction |
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| 75 | G4double* G4QElasticCrossSection::lastS3T=0; // E-dep of mantissa of the third difruction |
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| 76 | G4double* G4QElasticCrossSection::lastB3T=0; // E-dep of the slope of the third difruction |
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| 77 | G4double* G4QElasticCrossSection::lastS4T=0; // E-dep of mantissa of the 4-th difruction |
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| 78 | G4double* G4QElasticCrossSection::lastB4T=0; // E-dep of the slope of the 4-th difruction |
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| 79 | G4int G4QElasticCrossSection::lastPDG=0; // The last PDG code of the projectile |
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| 80 | G4int G4QElasticCrossSection::lastN=0; // The last N of calculated nucleus |
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| 81 | G4int G4QElasticCrossSection::lastZ=0; // The last Z of calculated nucleus |
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| 82 | G4double G4QElasticCrossSection::lastP=0.; // Last used in cross section Momentum |
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| 83 | G4double G4QElasticCrossSection::lastTH=0.; // Last threshold momentum |
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| 84 | G4double G4QElasticCrossSection::lastCS=0.; // Last value of the Cross Section |
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| 85 | G4int G4QElasticCrossSection::lastI=0; // The last position in the DAMDB |
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| 86 | |
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| 87 | std::vector<G4double*> G4QElasticCrossSection::PAR; // Vector of parameters for functCalcul |
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| 88 | std::vector<G4double*> G4QElasticCrossSection::CST; // Vector of cross-section table |
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| 89 | std::vector<G4double*> G4QElasticCrossSection::SST; // Vector of the first squared slope |
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| 90 | std::vector<G4double*> G4QElasticCrossSection::S1T; // Vector of the first mantissa |
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| 91 | std::vector<G4double*> G4QElasticCrossSection::B1T; // Vector of the first slope |
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| 92 | std::vector<G4double*> G4QElasticCrossSection::S2T; // Vector of the secon mantissa |
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| 93 | std::vector<G4double*> G4QElasticCrossSection::B2T; // Vector of the second slope |
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| 94 | std::vector<G4double*> G4QElasticCrossSection::S3T; // Vector of the third mantissa |
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| 95 | std::vector<G4double*> G4QElasticCrossSection::B3T; // Vector of the third slope |
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| 96 | std::vector<G4double*> G4QElasticCrossSection::S4T; // Vector of the 4-th mantissa (gloria) |
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| 97 | std::vector<G4double*> G4QElasticCrossSection::B4T; // Vector of the 4-th slope (gloria) |
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| 98 | |
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| 99 | G4QElasticCrossSection::G4QElasticCrossSection() |
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| 100 | { |
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| 101 | } |
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| 102 | |
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| 103 | G4QElasticCrossSection::~G4QElasticCrossSection() |
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| 104 | { |
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| 105 | std::vector<G4double*>::iterator pos; |
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| 106 | for (pos=CST.begin(); pos<CST.end(); pos++) |
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| 107 | { delete [] *pos; } |
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| 108 | CST.clear(); |
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| 109 | for (pos=PAR.begin(); pos<PAR.end(); pos++) |
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| 110 | { delete [] *pos; } |
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| 111 | PAR.clear(); |
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| 112 | for (pos=SST.begin(); pos<SST.end(); pos++) |
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| 113 | { delete [] *pos; } |
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| 114 | SST.clear(); |
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| 115 | for (pos=S1T.begin(); pos<S1T.end(); pos++) |
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| 116 | { delete [] *pos; } |
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| 117 | S1T.clear(); |
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| 118 | for (pos=B1T.begin(); pos<B1T.end(); pos++) |
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| 119 | { delete [] *pos; } |
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| 120 | B1T.clear(); |
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| 121 | for (pos=S2T.begin(); pos<S2T.end(); pos++) |
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| 122 | { delete [] *pos; } |
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| 123 | S2T.clear(); |
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| 124 | for (pos=B2T.begin(); pos<B2T.end(); pos++) |
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| 125 | { delete [] *pos; } |
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| 126 | B2T.clear(); |
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| 127 | for (pos=S3T.begin(); pos<S3T.end(); pos++) |
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| 128 | { delete [] *pos; } |
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| 129 | S3T.clear(); |
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| 130 | for (pos=B3T.begin(); pos<B3T.end(); pos++) |
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| 131 | { delete [] *pos; } |
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| 132 | B3T.clear(); |
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| 133 | for (pos=S4T.begin(); pos<S4T.end(); pos++) |
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| 134 | { delete [] *pos; } |
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| 135 | S4T.clear(); |
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| 136 | for (pos=B4T.begin(); pos<B4T.end(); pos++) |
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| 137 | { delete [] *pos; } |
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| 138 | B4T.clear(); |
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| 139 | } |
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| 140 | |
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| 141 | // Returns Pointer to the G4VQCrossSection class |
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| 142 | G4VQCrossSection* G4QElasticCrossSection::GetPointer() |
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| 143 | { |
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| 144 | static G4QElasticCrossSection theCrossSection; //**Static body of the QEl Cross Section** |
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| 145 | return &theCrossSection; |
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| 146 | } |
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| 147 | |
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| 148 | // The main member function giving the collision cross section (P is in IU, CS is in mb) |
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| 149 | // Make pMom in independent units ! (Now it is MeV) |
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| 150 | G4double G4QElasticCrossSection::GetCrossSection(G4bool fCS, G4double pMom, G4int tgZ, |
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| 151 | G4int tgN, G4int pPDG) |
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| 152 | { |
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| 153 | static std::vector <G4int> colPDG;// Vector of the projectile PDG code |
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| 154 | static std::vector <G4int> colN; // Vector of N for calculated nuclei (isotops) |
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| 155 | static std::vector <G4int> colZ; // Vector of Z for calculated nuclei (isotops) |
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| 156 | static std::vector <G4double> colP; // Vector of last momenta for the reaction |
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| 157 | static std::vector <G4double> colTH; // Vector of energy thresholds for the reaction |
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| 158 | static std::vector <G4double> colCS; // Vector of last cross sections for the reaction |
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| 159 | // ***---*** End of the mandatory Static Definitions of the Associative Memory ***---*** |
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| 160 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
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| 161 | { |
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| 162 | tgZ=1; |
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| 163 | tgN=1; |
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| 164 | if (pPDG==2212) pPDG=2112; |
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| 165 | else if(pPDG==2112) pPDG=2212; |
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| 166 | } |
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| 167 | G4double pEn=pMom; |
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| 168 | onlyCS=fCS; |
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| 169 | #ifdef pdebug |
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| 170 | G4cout<<"G4QElCS::GetCS:>>> f="<<fCS<<", p="<<pMom<<", Z="<<tgZ<<"("<<lastZ<<") ,N="<<tgN |
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| 171 | <<"("<<lastN<<"),PDG="<<pPDG<<"("<<lastPDG<<"), T="<<pEn<<"("<<lastTH<<")"<<",Sz=" |
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| 172 | <<colN.size()<<G4endl; |
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| 173 | //CalculateCrossSection(fCS,-27,j,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 174 | #endif |
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| 175 | if(!pPDG) |
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| 176 | { |
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| 177 | #ifdef pdebug |
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| 178 | G4cout<<"G4QElCS::GetCS: *** Found pPDG="<<pPDG<<" ====> CS=0"<<G4endl; |
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| 179 | //CalculateCrossSection(fCS,-27,j,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 180 | #endif |
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| 181 | return 0.; // projectile PDG=0 is a mistake (?!) @@ |
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| 182 | } |
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| 183 | G4bool in=false; // By default the isotope must be found in the AMDB |
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| 184 | //GF the block will update parameters, needed for quasi-eleastic |
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| 185 | //GF if(tgN!=lastN || tgZ!=lastZ || pPDG!=lastPDG)// The nucleus was not the last used isotope |
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| 186 | { |
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| 187 | in = false; // By default the isotope haven't be found in AMDB |
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| 188 | lastP = 0.; // New momentum history (nothing to compare with) |
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| 189 | lastPDG = pPDG; // The last PDG of the projectile |
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| 190 | lastN = tgN; // The last N of the calculated nucleus |
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| 191 | lastZ = tgZ; // The last Z of the calculated nucleus |
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| 192 | lastI = colN.size(); // Size of the Associative Memory DB in the heap |
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| 193 | if(lastI) for(G4int i=0; i<lastI; i++) // Loop over proj/tgZ/tgN lines of DB |
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| 194 | { // The nucleus with projPDG is found in AMDB |
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| 195 | if(colPDG[i]==pPDG && colN[i]==tgN && colZ[i]==tgZ) |
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| 196 | { |
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| 197 | lastI=i; |
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| 198 | lastTH =colTH[i]; // Last THreshold (A-dependent) |
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| 199 | #ifdef pdebug |
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| 200 | G4cout<<"G4QElCS::GetCS:*Found* P="<<pMom<<",Threshold="<<lastTH<<",i="<<i<<G4endl; |
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| 201 | //CalculateCrossSection(fCS,-27,i,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 202 | #endif |
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| 203 | if(pEn<=lastTH) |
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| 204 | { |
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| 205 | #ifdef pdebug |
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| 206 | G4cout<<"G4QElCS::GetCS:Found T="<<pEn<<" < Threshold="<<lastTH<<",CS=0"<<G4endl; |
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| 207 | //CalculateCrossSection(fCS,-27,i,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 208 | #endif |
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| 209 | return 0.; // Energy is below the Threshold value |
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| 210 | } |
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| 211 | lastP =colP [i]; // Last Momentum (A-dependent) |
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| 212 | lastCS =colCS[i]; // Last CrossSect (A-dependent) |
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| 213 | // if(std::fabs(lastP/pMom-1.)<tolerance) //VI (do not use tolerance) |
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| 214 | if(lastP == pMom) // V.Ivanchenko safe solution |
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| 215 | { |
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| 216 | #ifdef pdebug |
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| 217 | G4cout<<"G4QElCS::GetCS:P="<<pMom<<",CS="<<lastCS*millibarn<<G4endl; |
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| 218 | #endif |
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| 219 | CalculateCrossSection(fCS,-1,i,lastPDG,lastZ,lastN,pMom); // Update param's only |
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| 220 | return lastCS*millibarn; // Use theLastCS |
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| 221 | } |
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| 222 | in = true; // This is the case when the isotop is found in DB |
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| 223 | // Momentum pMom is in IU ! @@ Units |
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| 224 | #ifdef pdebug |
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| 225 | G4cout<<"G4QElCS::G:UpdateDB P="<<pMom<<",f="<<fCS<<",I="<<lastI<<",i="<<i<<G4endl; |
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| 226 | #endif |
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| 227 | lastCS=CalculateCrossSection(fCS,-1,i,lastPDG,lastZ,lastN,pMom); // read & update |
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| 228 | #ifdef pdebug |
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| 229 | G4cout<<"G4QElCS::GetCrosSec: *****> New (inDB) Calculated CS="<<lastCS<<G4endl; |
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| 230 | //CalculateCrossSection(fCS,-27,i,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 231 | #endif |
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| 232 | if(lastCS<=0. && pEn>lastTH) // Correct the threshold |
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| 233 | { |
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| 234 | #ifdef pdebug |
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| 235 | G4cout<<"G4QElCS::GetCS: New T="<<pEn<<"(CS=0) > Threshold="<<lastTH<<G4endl; |
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| 236 | #endif |
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| 237 | lastTH=pEn; |
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| 238 | } |
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| 239 | break; // Go out of the LOOP with found lastI |
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| 240 | } |
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| 241 | #ifdef pdebug |
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| 242 | G4cout<<"---G4QElCrossSec::GetCrosSec:pPDG="<<pPDG<<",i="<<i<<",N="<<colN[i] |
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| 243 | <<",Z["<<i<<"]="<<colZ[i]<<",cPDG="<<colPDG[i]<<G4endl; |
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| 244 | //CalculateCrossSection(fCS,-27,i,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 245 | #endif |
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| 246 | } |
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| 247 | if(!in) // This nucleus has not been calculated previously |
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| 248 | { |
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| 249 | #ifdef pdebug |
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| 250 | G4cout<<"G4QElCS::GetCrosSec:CalcNew P="<<pMom<<",f="<<fCS<<",lastI="<<lastI<<G4endl; |
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| 251 | #endif |
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| 252 | //!!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU) |
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| 253 | lastCS=CalculateCrossSection(fCS,0,lastI,lastPDG,lastZ,lastN,pMom);//calculate&create |
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| 254 | if(lastCS<=0.) |
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| 255 | { |
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| 256 | lastTH = ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last |
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| 257 | #ifdef pdebug |
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| 258 | G4cout<<"G4QElCrossSection::GetCrossSect: NewThresh="<<lastTH<<",T="<<pEn<<G4endl; |
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| 259 | #endif |
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| 260 | if(pEn>lastTH) |
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| 261 | { |
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| 262 | #ifdef pdebug |
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| 263 | G4cout<<"G4QElCS::GetCS: First T="<<pEn<<"(CS=0) > Threshold="<<lastTH<<G4endl; |
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| 264 | #endif |
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| 265 | lastTH=pEn; |
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| 266 | } |
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| 267 | } |
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| 268 | #ifdef pdebug |
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| 269 | G4cout<<"G4QElCS::GetCrosSec: New CS="<<lastCS<<",lZ="<<lastN<<",lN="<<lastZ<<G4endl; |
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| 270 | //CalculateCrossSection(fCS,-27,lastI,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 271 | #endif |
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| 272 | colN.push_back(tgN); |
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| 273 | colZ.push_back(tgZ); |
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| 274 | colPDG.push_back(pPDG); |
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| 275 | colP.push_back(pMom); |
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| 276 | colTH.push_back(lastTH); |
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| 277 | colCS.push_back(lastCS); |
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| 278 | #ifdef pdebug |
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| 279 | G4cout<<"G4QElCS::GetCS:1st,P="<<pMom<<"(MeV),CS="<<lastCS*millibarn<<"(mb)"<<G4endl; |
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| 280 | //CalculateCrossSection(fCS,-27,lastI,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 281 | #endif |
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| 282 | return lastCS*millibarn; |
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| 283 | } // End of creation of the new set of parameters |
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| 284 | else |
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| 285 | { |
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| 286 | #ifdef pdebug |
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| 287 | G4cout<<"G4QElCS::GetCS: Update lastI="<<lastI<<G4endl; |
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| 288 | #endif |
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| 289 | colP[lastI]=pMom; |
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| 290 | colPDG[lastI]=pPDG; |
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| 291 | colCS[lastI]=lastCS; |
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| 292 | } |
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| 293 | } // End of parameters udate |
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| 294 | |
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| 295 | // GF |
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| 296 | // else if(pEn<=lastTH) |
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| 297 | // { |
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| 298 | // #ifdef pdebug |
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| 299 | // G4cout<<"G4QElCS::GetCS: Current T="<<pEn<<" < Threshold="<<lastTH<<", CS=0"<<G4endl; |
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| 300 | // //CalculateCrossSection(fCS,-27,lastI,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 301 | // #endif |
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| 302 | // return 0.; // Momentum is below the Threshold Value -> CS=0 |
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| 303 | // } |
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| 304 | // // else if(std::fabs(lastP/pMom-1.)<tolerance) |
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| 305 | // else if(lastP == pMom) // V.Ivanchenko safe solution |
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| 306 | // { |
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| 307 | // #ifdef pdebug |
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| 308 | // G4cout<<"G4QElCS::GetCS:OldCur P="<<pMom<<"="<<pMom<<", CS="<<lastCS*millibarn<<G4endl; |
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| 309 | // //CalculateCrossSection(fCS,-27,lastI,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 310 | // G4cout<<"G4QElCS::GetCrSec:***SAME***, onlyCS="<<onlyCS<<G4endl; |
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| 311 | // #endif |
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| 312 | // return lastCS*millibarn; // Use theLastCS |
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| 313 | // } |
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| 314 | // else |
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| 315 | // { |
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| 316 | // #ifdef pdebug |
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| 317 | // G4cout<<"G4QElCS::GetCS:UpdatCur P="<<pMom<<",f="<<fCS<<",I="<<lastI<<",j="<<j<<G4endl; |
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| 318 | // #endif |
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| 319 | // lastCS=CalculateCrossSection(fCS,1,lastI,lastPDG,lastZ,lastN,pMom); // Only UpdateDB |
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| 320 | // lastP=pMom; |
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| 321 | // } |
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| 322 | // GF |
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| 323 | |
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| 324 | #ifdef pdebug |
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| 325 | G4cout<<"G4QElCS::GetCrSec:End,P="<<pMom<<"(MeV),CS="<<lastCS*millibarn<<"(mb)"<<G4endl; |
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| 326 | //CalculateCrossSection(fCS,-27,lastI,lastPDG,lastZ,lastN,pMom); // DUMMY TEST |
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| 327 | G4cout<<"G4QElCS::GetCrSec:***End***, onlyCS="<<onlyCS<<G4endl; |
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| 328 | #endif |
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| 329 | return lastCS*millibarn; |
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| 330 | } |
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| 331 | |
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| 332 | // Calculation of total elastic cross section (p in IU, CS in mb) @@ Units (?) |
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| 333 | // F=0 - create AMDB, F=-1 - read&update AMDB, F=1 - update AMDB (sinchro with higher AMDB) |
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| 334 | G4double G4QElasticCrossSection::CalculateCrossSection(G4bool CS,G4int F,G4int I,G4int PDG, |
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| 335 | G4int tgZ, G4int tgN, G4double pIU) |
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| 336 | { |
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| 337 | // *** Begin of Associative Memory DB for acceleration of the cross section calculations |
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| 338 | static std::vector <G4double> PIN; // Vector of max initialized log(P) in the table |
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| 339 | // *** End of Static Definitions (Associative Memory Data Base) *** |
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| 340 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
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| 341 | { |
---|
| 342 | tgZ=1; |
---|
| 343 | tgN=1; |
---|
| 344 | if (PDG==2212) PDG=2112; |
---|
| 345 | else if(PDG==2112) PDG=2212; |
---|
| 346 | } |
---|
| 347 | G4double pMom=pIU/GeV; // All calculations are in GeV |
---|
| 348 | onlyCS=CS; // Flag to calculate only CS (not Si/Bi) |
---|
| 349 | #ifdef pdebug |
---|
| 350 | G4cout<<"G4QElasticCrossSection::CalcCS:->onlyCS="<<onlyCS<<",F="<<F<<",p="<<pIU<<G4endl; |
---|
| 351 | #endif |
---|
| 352 | lastLP=std::log(pMom); // Make a logarithm of the momentum for calculation |
---|
| 353 | if(F) // This isotope was found in AMDB =>RETRIEVE/UPDATE |
---|
| 354 | { |
---|
| 355 | if(F<0) // the AMDB must be loded |
---|
| 356 | { |
---|
| 357 | lastPIN = PIN[I]; // Max log(P) initialised for this table set |
---|
| 358 | lastPAR = PAR[I]; // Pointer to the parameter set |
---|
| 359 | lastCST = CST[I]; // Pointer to the total sross-section table |
---|
| 360 | lastSST = SST[I]; // Pointer to the first squared slope |
---|
| 361 | lastS1T = S1T[I]; // Pointer to the first mantissa |
---|
| 362 | lastB1T = B1T[I]; // Pointer to the first slope |
---|
| 363 | lastS2T = S2T[I]; // Pointer to the second mantissa |
---|
| 364 | lastB2T = B2T[I]; // Pointer to the second slope |
---|
| 365 | lastS3T = S3T[I]; // Pointer to the third mantissa |
---|
| 366 | lastB3T = B3T[I]; // Pointer to the rhird slope |
---|
| 367 | lastS4T = S4T[I]; // Pointer to the 4-th mantissa |
---|
| 368 | lastB4T = B4T[I]; // Pointer to the 4-th slope |
---|
| 369 | #ifdef pdebug |
---|
| 370 | G4cout<<"G4QElasticCS::CalcCS: DB is updated for I="<<I<<",*,PIN4="<<PIN[4]<<G4endl; |
---|
| 371 | #endif |
---|
| 372 | } |
---|
| 373 | #ifdef pdebug |
---|
| 374 | G4cout<<"G4QElasticCrossSection::CalcCS:*read*, LP="<<lastLP<<",PIN="<<lastPIN<<G4endl; |
---|
| 375 | #endif |
---|
| 376 | if(lastLP>lastPIN && lastLP<lPMax) |
---|
| 377 | { |
---|
| 378 | lastPIN=GetPTables(lastLP,lastPIN,PDG,tgZ,tgN);// Can update upper logP-Limit in tabs |
---|
| 379 | #ifdef pdebug |
---|
| 380 | G4cout<<"G4QElCS::CalcCS:*updated(I)*,LP="<<lastLP<<"<IN["<<I<<"]="<<lastPIN<<G4endl; |
---|
| 381 | #endif |
---|
| 382 | PIN[I]=lastPIN; // Remember the new P-Limit of the tables |
---|
| 383 | } |
---|
| 384 | } |
---|
| 385 | else // This isotope wasn't initialized => CREATE |
---|
| 386 | { |
---|
| 387 | lastPAR = new G4double[nPoints]; // Allocate memory for parameters of CS function |
---|
| 388 | lastPAR[nLast]=0; // Initialization for VALGRIND |
---|
| 389 | lastCST = new G4double[nPoints]; // Allocate memory for Tabulated CS function |
---|
| 390 | lastSST = new G4double[nPoints]; // Allocate memory for Tabulated first sqaredSlope |
---|
| 391 | lastS1T = new G4double[nPoints]; // Allocate memory for Tabulated first mantissa |
---|
| 392 | lastB1T = new G4double[nPoints]; // Allocate memory for Tabulated first slope |
---|
| 393 | lastS2T = new G4double[nPoints]; // Allocate memory for Tabulated second mantissa |
---|
| 394 | lastB2T = new G4double[nPoints]; // Allocate memory for Tabulated second slope |
---|
| 395 | lastS3T = new G4double[nPoints]; // Allocate memory for Tabulated third mantissa |
---|
| 396 | lastB3T = new G4double[nPoints]; // Allocate memory for Tabulated third slope |
---|
| 397 | lastS4T = new G4double[nPoints]; // Allocate memory for Tabulated 4-th mantissa |
---|
| 398 | lastB4T = new G4double[nPoints]; // Allocate memory for Tabulated 4-th slope |
---|
| 399 | #ifdef pdebug |
---|
| 400 | G4cout<<"G4QElasticCrossSection::CalcCS:*ini*,lastLP="<<lastLP<<",min="<<lPMin<<G4endl; |
---|
| 401 | #endif |
---|
| 402 | lastPIN = GetPTables(lastLP,lPMin,PDG,tgZ,tgN); // Returns the new P-limit for tables |
---|
| 403 | #ifdef pdebug |
---|
| 404 | G4cout<<"G4QElCS::CalcCS:*i*Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<",LP"<<lastPIN<<G4endl; |
---|
| 405 | #endif |
---|
| 406 | PIN.push_back(lastPIN); // Fill parameters of CS function to AMDB |
---|
| 407 | PAR.push_back(lastPAR); // Fill parameters of CS function to AMDB |
---|
| 408 | CST.push_back(lastCST); // Fill Tabulated CS function to AMDB |
---|
| 409 | SST.push_back(lastSST); // Fill Tabulated first sq.slope to AMDB |
---|
| 410 | S1T.push_back(lastS1T); // Fill Tabulated first mantissa to AMDB |
---|
| 411 | B1T.push_back(lastB1T); // Fill Tabulated first slope to AMDB |
---|
| 412 | S2T.push_back(lastS2T); // Fill Tabulated second mantissa to AMDB |
---|
| 413 | B2T.push_back(lastB2T); // Fill Tabulated second slope to AMDB |
---|
| 414 | S3T.push_back(lastS3T); // Fill Tabulated third mantissa to AMDB |
---|
| 415 | B3T.push_back(lastB3T); // Fill Tabulated third slope to AMDB |
---|
| 416 | S4T.push_back(lastS4T); // Fill Tabulated 4-th mantissa to AMDB |
---|
| 417 | B4T.push_back(lastB4T); // Fill Tabulated 4-th slope to AMDB |
---|
| 418 | } // End of creation/update of the new set of parameters and tables |
---|
| 419 | // ============= NOW Update (if necessary) and Calculate the Cross Section =========== |
---|
| 420 | #ifdef pdebug |
---|
| 421 | G4cout<<"G4QElCS::CalcCS:?update?,LP="<<lastLP<<",IN="<<lastPIN<<",ML="<<lPMax<<G4endl; |
---|
| 422 | #endif |
---|
| 423 | if(lastLP>lastPIN && lastLP<lPMax) |
---|
| 424 | { |
---|
| 425 | lastPIN = GetPTables(lastLP,lastPIN,PDG,tgZ,tgN); |
---|
| 426 | #ifdef pdebug |
---|
| 427 | G4cout<<"G4QElCS::CalcCS: *updated(O)*, LP="<<lastLP<<" < IN="<<lastPIN<<G4endl; |
---|
| 428 | #endif |
---|
| 429 | } |
---|
| 430 | #ifdef pdebug |
---|
| 431 | G4cout<<"G4QElastCS::CalcCS: lastLP="<<lastLP<<",lPM="<<lPMin<<",lPIN="<<lastPIN<<G4endl; |
---|
| 432 | #endif |
---|
| 433 | if(!onlyCS) lastTM=GetQ2max(PDG, tgZ, tgN, pMom); // Calculate (-t)_max=Q2_max (GeV2) |
---|
| 434 | #ifdef pdebug |
---|
| 435 | G4cout<<"G4QElasticCrosSec::CalcCS:oCS="<<onlyCS<<",-t="<<lastTM<<", p="<<lastLP<<G4endl; |
---|
| 436 | #endif |
---|
| 437 | if(lastLP>lPMin && lastLP<=lastPIN) // Linear fit is made using precalculated tables |
---|
| 438 | { |
---|
| 439 | if(lastLP==lastPIN) // VI do not use tolerance |
---|
| 440 | // if(std::fabs(lastLP-lastPIN)<.0001) // Just take the highest tabulated value |
---|
| 441 | { |
---|
| 442 | G4double shift=(lastLP-lPMin)/dlnP+.000001; // Log distance from lPMin |
---|
| 443 | G4int blast=static_cast<int>(shift); // this is a bin number of the lower edge (0) |
---|
| 444 | if(blast<0 || blast>=nLast) G4cout<<"G4QEleastCS::CCS:b="<<blast<<","<<nLast<<G4endl; |
---|
| 445 | lastSIG = lastCST[blast]; |
---|
| 446 | if(!onlyCS) // Skip the differential cross-section parameters |
---|
| 447 | { |
---|
| 448 | theSS = lastSST[blast]; |
---|
| 449 | theS1 = lastS1T[blast]; |
---|
| 450 | theB1 = lastB1T[blast]; |
---|
| 451 | theS2 = lastS2T[blast]; |
---|
| 452 | theB2 = lastB2T[blast]; |
---|
| 453 | theS3 = lastS3T[blast]; |
---|
| 454 | theB3 = lastB3T[blast]; |
---|
| 455 | theS4 = lastS4T[blast]; |
---|
| 456 | theB4 = lastB4T[blast]; |
---|
| 457 | } |
---|
| 458 | #ifdef pdebug |
---|
| 459 | G4cout<<"G4QElasticCrossSection::CalculateCS:(E) S1="<<theS1<<", B1="<<theB1<<G4endl; |
---|
| 460 | #endif |
---|
| 461 | } |
---|
| 462 | else |
---|
| 463 | { |
---|
| 464 | G4double shift=(lastLP-lPMin)/dlnP; // a shift from the beginning of the table |
---|
| 465 | G4int blast=static_cast<int>(shift); // the lower bin number |
---|
| 466 | if(blast<0) blast=0; |
---|
| 467 | if(blast>=nLast) blast=nLast-1; // low edge of the last bin |
---|
| 468 | shift-=blast; // step inside the unit bin |
---|
| 469 | G4int lastL=blast+1; // the upper bin number |
---|
| 470 | G4double SIGL=lastCST[blast]; // the basic value of the cross-section |
---|
| 471 | lastSIG= SIGL+shift*(lastCST[lastL]-SIGL); // calculated total elastic cross-section |
---|
| 472 | #ifdef pdebug |
---|
| 473 | G4cout<<"G4QElCS::CalcCrossSection: Sig="<<lastSIG<<", P="<<pMom<<", Z="<<tgZ<<", N=" |
---|
| 474 | <<tgN<<", PDG="<<PDG<<", onlyCS="<<onlyCS<<G4endl; |
---|
| 475 | #endif |
---|
| 476 | if(!onlyCS) // Skip the differential cross-section parameters |
---|
| 477 | { |
---|
| 478 | G4double SSTL=lastSST[blast]; // the low bin of the first squared slope |
---|
| 479 | theSS=SSTL+shift*(lastSST[lastL]-SSTL); // the basic value of the first sq.slope |
---|
| 480 | G4double S1TL=lastS1T[blast]; // the low bin of the first mantissa |
---|
| 481 | theS1=S1TL+shift*(lastS1T[lastL]-S1TL); // the basic value of the first mantissa |
---|
| 482 | G4double B1TL=lastB1T[blast]; // the low bin of the first slope |
---|
| 483 | #ifdef pdebug |
---|
| 484 | G4cout<<"G4QElCS::CalcCrossSection:bl="<<blast<<",ls="<<lastL<<",SL="<<S1TL<<",SU=" |
---|
| 485 | <<lastS1T[lastL]<<",BL="<<B1TL<<",BU="<<lastB1T[lastL]<<G4endl; |
---|
| 486 | #endif |
---|
| 487 | theB1=B1TL+shift*(lastB1T[lastL]-B1TL); // the basic value of the first slope |
---|
| 488 | G4double S2TL=lastS2T[blast]; // the low bin of the second mantissa |
---|
| 489 | theS2=S2TL+shift*(lastS2T[lastL]-S2TL); // the basic value of the second mantissa |
---|
| 490 | G4double B2TL=lastB2T[blast]; // the low bin of the second slope |
---|
| 491 | theB2=B2TL+shift*(lastB2T[lastL]-B2TL); // the basic value of the second slope |
---|
| 492 | G4double S3TL=lastS3T[blast]; // the low bin of the third mantissa |
---|
| 493 | theS3=S3TL+shift*(lastS3T[lastL]-S3TL); // the basic value of the third mantissa |
---|
| 494 | #ifdef pdebug |
---|
| 495 | G4cout<<"G4QElCS::CCS: s3l="<<S3TL<<",sh3="<<shift<<",s3h="<<lastS3T[lastL]<<",b=" |
---|
| 496 | <<blast<<",l="<<lastL<<G4endl; |
---|
| 497 | #endif |
---|
| 498 | G4double B3TL=lastB3T[blast]; // the low bin of the third slope |
---|
| 499 | theB3=B3TL+shift*(lastB3T[lastL]-B3TL); // the basic value of the third slope |
---|
| 500 | G4double S4TL=lastS4T[blast]; // the low bin of the 4-th mantissa |
---|
| 501 | theS4=S4TL+shift*(lastS4T[lastL]-S4TL); // the basic value of the 4-th mantissa |
---|
| 502 | #ifdef pdebug |
---|
| 503 | G4cout<<"G4QElCS::CCS: s4l="<<S4TL<<",sh4="<<shift<<",s4h="<<lastS4T[lastL]<<",b=" |
---|
| 504 | <<blast<<",l="<<lastL<<G4endl; |
---|
| 505 | #endif |
---|
| 506 | G4double B4TL=lastB4T[blast]; // the low bin of the 4-th slope |
---|
| 507 | theB4=B4TL+shift*(lastB4T[lastL]-B4TL); // the basic value of the 4-th slope |
---|
| 508 | } |
---|
| 509 | #ifdef pdebug |
---|
| 510 | G4cout<<"G4QElasticCrossSection::CalculateCS:(I) S1="<<theS1<<", B1="<<theB1<<G4endl; |
---|
| 511 | #endif |
---|
| 512 | } |
---|
| 513 | } |
---|
| 514 | else lastSIG=GetTabValues(lastLP, PDG, tgZ, tgN); // Direct calculation beyond the table |
---|
| 515 | if(lastSIG<0.) lastSIG = 0.; // @@ a Warning print can be added |
---|
| 516 | #ifdef pdebug |
---|
| 517 | G4cout<<"G4QElasticCrossSection::CalculateCS: END, onlyCS="<<onlyCS<<G4endl; |
---|
| 518 | #endif |
---|
| 519 | return lastSIG; |
---|
| 520 | } |
---|
| 521 | |
---|
| 522 | // It has parameter sets for all tZ/tN/PDG, using them the tables can be created/updated |
---|
| 523 | G4double G4QElasticCrossSection::GetPTables(G4double LP,G4double ILP, G4int PDG, G4int tgZ, |
---|
| 524 | G4int tgN) |
---|
| 525 | { |
---|
| 526 | // @@ At present all nA==pA ---------> Each neucleus can have not more than 51 parameters |
---|
| 527 | static const G4double pwd=2727; |
---|
| 528 | const G4int n_npel=24; // #of parameters for np-elastic (<nPoints=128) |
---|
| 529 | const G4int n_ppel=32; // #of parameters for pp-elastic (<nPoints=128) |
---|
| 530 | // -0- -1- -2- -3- -4- -5- -6- -7- -8- -9--10--11--12--13- -14- |
---|
| 531 | G4double np_el[n_npel]={12.,.05,.0001,5.,.35,6.75,.14,19.,.6,6.75,.14,13.,.14,.6,.00013, |
---|
| 532 | 75.,.001,7.2,4.32,.012,2.5,0.0,12.,.34}; |
---|
| 533 | // -15--16--17- -18- -19--20--21--22--23- |
---|
| 534 | // -0- -1- -2- -3- -4- -5- -6- -7- -8--9--10--11--12--13- |
---|
| 535 | G4double pp_el[n_ppel]={2.865,18.9,.6461,3.,9.,.425,.4276,.0022,5.,74.,3.,3.4,.2,.17, |
---|
| 536 | .001,8.,.055,3.64,5.e-5,4000.,1500.,.46,1.2e6,3.5e6,5.e-5,1.e10, |
---|
| 537 | 8.5e8,1.e10,1.1,3.4e6,6.8e6,0.}; |
---|
| 538 | // -14--15- -16- -17- -18- -19- -20- -21- -22- -23- -24- -25- |
---|
| 539 | // -26- -27- -28- -29- -30- -31- |
---|
| 540 | // -0- -1--2- -3- -4- -5- -6- -7- -8- -9- -10--11--12--13- |
---|
| 541 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
---|
| 542 | { |
---|
| 543 | tgZ=1; |
---|
| 544 | tgN=1; |
---|
| 545 | if (PDG==2212) PDG=2112; |
---|
| 546 | else if(PDG==2112) PDG=2212; |
---|
| 547 | } |
---|
| 548 | if(PDG==2212 || PDG==2112) |
---|
| 549 | { |
---|
| 550 | // --- Total np elastic cross section cs & s1/b1 (t), s2/b2 (u) --- NotTuned for highE |
---|
| 551 | //p2=p*p;p3=p2*p;sp=sqrt(p);p2s=p2*sp;lp=log(p);dl1=lp-(5.=par(3));p4=p2*p2; p=|3-mom| |
---|
| 552 | //CS=12./(p2s+.05*p+.0001/sqrt(sp))+.35/p+(6.75+.14*dl1*dl1+19./p)/(1.+.6/p4); |
---|
| 553 | // par(0) par(1) par(2) par(4) par(5) par(6) par(7) par(8) |
---|
| 554 | //s1=(6.75+.14*dl2*dl2+13./p)/(1.+.14/p4)+.6/(p4+.00013), s2=(75.+.001/p4/p)/p3 |
---|
| 555 | // par(9) par(10) par(11) par(12) par(13) par(14) par(15) par(16) |
---|
| 556 | //b1=(7.2+4.32/(p4*p4+.012*p3))/(1.+2.5/p4), ss=0., b2=12./(p*sp+.34) |
---|
| 557 | //par(17) par(18) par(19) par(20) par(21) par(22) par(23) |
---|
| 558 | // |
---|
| 559 | // -- Total pp elastic cross section cs & s1/b1 (main), s2/b2 (tail1), s3/b3 (tail2) -- |
---|
| 560 | //p2=p*p;p3=p2*p;sp=sqrt(p);p2s=p2*sp;lp=log(p);dl1=lp-(3.=par(3));p4=p2*p2; p=|3-mom| |
---|
| 561 | //CS=2.865/p2s/(1+.0022/p2s)+(18.9+.6461*dl1*dl1+9./p)/(1.+.425*lp)/(1.+.4276/p4); |
---|
| 562 | // par(0) par(7) par(1) par(2) par(4) par(5) par(6) |
---|
| 563 | //dl2=lp-5., s1=(74.+3.*dl2*dl2)/(1+3.4/p4/p)+(.2/p2+17.*p)/(p4+.001*sp), |
---|
| 564 | // par(8) par(9) par(10) par(11) par(12)par(13) par(14) |
---|
| 565 | // b1=8.*p**.055/(1.+3.64/p3); s2=5.e-5+4000./(p4+1500.*p); b2=.46+1.2e6/(p4+3.5e6/sp); |
---|
| 566 | // par(15) par(16) par(17) par(18) par(19) par(20) par(21) par(22) par(23) |
---|
| 567 | // s3=5.e-5+1.e10/(p4*p4+8.5e8*p2+1.e10); b3=1.1+3.4e6/(p4+6.8e6); ss=0. |
---|
| 568 | // par(24) par(25) par(26) par(27) par(28) par(29) par(30) par(31) |
---|
| 569 | // |
---|
| 570 | if(lastPAR[nLast]!=pwd) // A unique flag to avoid the repeatable definition |
---|
| 571 | { |
---|
| 572 | if ( (PDG == 2112 && tgZ == 1 && tgN == 0) || |
---|
| 573 | (PDG == 2212 && tgZ == 0 && tgN == 1) ) { |
---|
| 574 | for (G4int ip=0; ip<n_npel; ip++) lastPAR[ip]=np_el[ip]; //np/pn |
---|
| 575 | |
---|
| 576 | } else if ( (PDG == 2212 && tgZ == 1 && tgN == 0) || |
---|
| 577 | (PDG == 2112 && tgZ == 0 && tgN == 1) ) { |
---|
| 578 | for (G4int ip=0; ip<n_ppel; ip++) lastPAR[ip]=pp_el[ip]; //pp/nn |
---|
| 579 | |
---|
| 580 | } else { |
---|
| 581 | G4double a=tgZ+tgN; |
---|
| 582 | G4double sa=std::sqrt(a); |
---|
| 583 | G4double ssa=std::sqrt(sa); |
---|
| 584 | G4double asa=a*sa; |
---|
| 585 | G4double a2=a*a; |
---|
| 586 | G4double a3=a2*a; |
---|
| 587 | G4double a4=a3*a; |
---|
| 588 | G4double a5=a4*a; |
---|
| 589 | G4double a6=a4*a2; |
---|
| 590 | G4double a7=a6*a; |
---|
| 591 | G4double a8=a7*a; |
---|
| 592 | G4double a9=a8*a; |
---|
| 593 | G4double a10=a5*a5; |
---|
| 594 | G4double a12=a6*a6; |
---|
| 595 | G4double a14=a7*a7; |
---|
| 596 | G4double a16=a8*a8; |
---|
| 597 | G4double a17=a16*a; |
---|
| 598 | G4double a32=a16*a16; |
---|
| 599 | G4double r1a16=3.e16/a16; |
---|
| 600 | G4double r2a16=2.e13/a16; |
---|
| 601 | G4double r3a16=6.e13/a16; |
---|
| 602 | G4double pa10=5.e-27*a10; |
---|
| 603 | // Reaction cross-section parameters (pel=peh_fit.f) |
---|
| 604 | lastPAR[0]=.28*a; // p1 |
---|
| 605 | lastPAR[1]=4.8*std::pow(a,1.14)/(1.+3.6/a3); // p2(p/n) |
---|
| 606 | lastPAR[2]=3.3/a+.5*ssa/(1.+2.e7/a8); // p3 |
---|
| 607 | if(PDG==2112) |
---|
| 608 | { |
---|
| 609 | if(a<6.5) |
---|
| 610 | { |
---|
| 611 | lastPAR[3]=1./(1.+.00123*a4); // p4 |
---|
| 612 | lastPAR[4]=1.5e-4/a2/(a+1.2e-6*a12)+1.5e-6; // p5 |
---|
| 613 | lastPAR[5]=.0062/(a+5.e-11*a16); // p6 |
---|
| 614 | lastPAR[6]=3.2e-14/a6/(1.+4.e-10*a17); // p7 |
---|
| 615 | lastPAR[7]=.847/a4/(a+.0005*a8)+.00045; // p8 |
---|
| 616 | lastPAR[8]=.413/a16+7.e-7; // p10 |
---|
| 617 | } |
---|
| 618 | else |
---|
| 619 | { |
---|
| 620 | lastPAR[1]/=1.+4.e-3*a; // @@ reduction for n, can be for p too // p2(n) |
---|
| 621 | lastPAR[3]=a*(.5+1.e-10*a4)/(1.+7.e5/a6); // p4 |
---|
| 622 | lastPAR[4]=a*3.e-5/(1.+2.e12/a12); // p5 |
---|
| 623 | lastPAR[5]=(.0006+1.e-14*a5)/(1.+4.e5/a3)/(1.+3.e23/a16/a8); // p6 |
---|
| 624 | lastPAR[6]=1.e-22*a4/(1.+5.e16*(1.+5e31/a32)/a16); // p7 |
---|
| 625 | lastPAR[7]=(8.+.00016*a2)/(1.+1.4e14/a16); // p8 |
---|
| 626 | lastPAR[8]=.0013; // p10 |
---|
| 627 | } |
---|
| 628 | } |
---|
| 629 | else |
---|
| 630 | { |
---|
| 631 | lastPAR[2]=3.3/a+.7*ssa/(1.+2.e7/a8); // p3 |
---|
| 632 | lastPAR[3]=1./(1.+6.e-9*a12)+.6*a/(1.+1.6e15/a16); // p4 |
---|
| 633 | lastPAR[4]=6.e-4/(a4+3.e-6*a12)+.16/(a+9.e5/a3+r1a16*r1a16); // p5 |
---|
| 634 | lastPAR[5]=3.e-4/a2+(1.5e-3+3.e-14*a7)/(1.+r2a16*r2a16+3.e-12*a6); // p6 |
---|
| 635 | lastPAR[6]=4.e-30+(1.2e-28*a3+pa10*pa10)/(1.+r3a16*r3a16+4.e-26*a14); // p7 |
---|
| 636 | lastPAR[7]=.07/(1.+1.7e-8*a16)+.5/(1.+1.7e18/a16+4.5e-7*a4); // p8 |
---|
| 637 | lastPAR[8]=(1.5e-10+2.e-18*a8)/(1.+3.e-25*a16); // p10 |
---|
| 638 | } |
---|
| 639 | // @@ the differential cross-section is parameterized separately for A>6 & A<7 |
---|
| 640 | if(a<6.5) |
---|
| 641 | { |
---|
| 642 | // a11 |
---|
| 643 | // a13 |
---|
| 644 | G4double a28=a16*a12; |
---|
| 645 | // a31 |
---|
| 646 | // a40 |
---|
| 647 | // The main pre-exponent (pel_sg) |
---|
| 648 | lastPAR[ 9]=4000*a; // p1 |
---|
| 649 | lastPAR[10]=1.2e7*a8+380*a17; // p2 |
---|
| 650 | lastPAR[11]=.7/(1.+4.e-12*a16); // p3 |
---|
| 651 | lastPAR[12]=2.5/a8/(a4+1.e-16*a32); // p4 |
---|
| 652 | lastPAR[13]=.28*a; // p5 |
---|
| 653 | lastPAR[14]=1.2*a2+2.3; // p6 |
---|
| 654 | lastPAR[15]=3.8/a; // p7 |
---|
| 655 | // The main slope (pel_sl) |
---|
| 656 | lastPAR[16]=.01/(1.+.0024*a5); // p1 |
---|
| 657 | lastPAR[17]=.2*a; // p2 |
---|
| 658 | lastPAR[18]=9.e-7/(1.+.035*a5); // p3 |
---|
| 659 | lastPAR[19]=(42.+2.7e-11*a16)/(1.+.14*a); // p4 |
---|
| 660 | // The main quadratic (pel_sh) |
---|
| 661 | lastPAR[20]=2.25*a3; // p1 |
---|
| 662 | lastPAR[21]=18.; // p2 |
---|
| 663 | lastPAR[22]=2.4e-3*a8/(1.+2.6e-4*a7); // p3 |
---|
| 664 | lastPAR[23]=3.5e-36*a32*a8/(1.+5.e-15*a32/a); // p4 |
---|
| 665 | // The 1st max pre-exponent (pel_qq) |
---|
| 666 | lastPAR[24]=8.e4/(a8+2.5e12/a16); // p1 |
---|
| 667 | lastPAR[25]=8.e7/(a12+1.e-27*a28*a28); // p2 |
---|
| 668 | lastPAR[26]=.0011*a3; // p3 |
---|
| 669 | // The 1st max slope (pel_qs) |
---|
| 670 | lastPAR[27]=10.+4.e-8*a12*a; // p1 |
---|
| 671 | lastPAR[28]=.114; // p2 |
---|
| 672 | lastPAR[29]=.003; // p3 |
---|
| 673 | lastPAR[30]=2.e-23; // p4 |
---|
| 674 | // The effective pre-exponent (pel_ss) |
---|
| 675 | lastPAR[31]=1./(1.+.0001*a8); // p1 |
---|
| 676 | lastPAR[32]=1.5e-4/(1.+5.e-6*a12); // p2 |
---|
| 677 | lastPAR[33]=.03; // p3 |
---|
| 678 | // The effective slope (pel_sb) |
---|
| 679 | lastPAR[34]=a/2; // p1 |
---|
| 680 | lastPAR[35]=2.e-7*a4; // p2 |
---|
| 681 | lastPAR[36]=4.; // p3 |
---|
| 682 | lastPAR[37]=64./a3; // p4 |
---|
| 683 | // The gloria pre-exponent (pel_us) |
---|
| 684 | lastPAR[38]=1.05e8*std::exp(.32*asa); // p1 |
---|
| 685 | lastPAR[39]=19.5*std::exp(.45*asa); // p2 |
---|
| 686 | lastPAR[40]=7.e3+2.4e6/a5; // p3 |
---|
| 687 | lastPAR[41]=2.5e5*std::exp(.085*a3); // p4 |
---|
| 688 | lastPAR[42]=2.5*a; // p5 |
---|
| 689 | // The gloria slope (pel_ub) |
---|
| 690 | lastPAR[43]=920.+.03*a8*a3; // p1 |
---|
| 691 | lastPAR[44]=93.+.0023*a12; // p2 |
---|
| 692 | #ifdef pdebug |
---|
| 693 | G4cout<<"G4QElCS::CalcCS:la "<<lastPAR[38]<<", "<<lastPAR[39]<<", "<<lastPAR[40] |
---|
| 694 | <<", "<<lastPAR[42]<<", "<<lastPAR[43]<<", "<<lastPAR[44]<<G4endl; |
---|
| 695 | #endif |
---|
| 696 | } |
---|
| 697 | else |
---|
| 698 | { |
---|
| 699 | G4double p1a10=2.2e-28*a10; |
---|
| 700 | G4double r4a16=6.e14/a16; |
---|
| 701 | G4double s4a16=r4a16*r4a16; |
---|
| 702 | // a24 |
---|
| 703 | // a36 |
---|
| 704 | // The main pre-exponent (peh_sg) |
---|
| 705 | lastPAR[ 9]=4.5*std::pow(a,1.15); // p1 |
---|
| 706 | lastPAR[10]=.06*std::pow(a,.6); // p2 |
---|
| 707 | lastPAR[11]=.6*a/(1.+2.e15/a16); // p3 |
---|
| 708 | lastPAR[12]=.17/(a+9.e5/a3+1.5e33/a32); // p4 |
---|
| 709 | lastPAR[13]=(.001+7.e-11*a5)/(1.+4.4e-11*a5); // p5 |
---|
| 710 | lastPAR[14]=(p1a10*p1a10+2.e-29)/(1.+2.e-22*a12); // p6 |
---|
| 711 | // The main slope (peh_sl) |
---|
| 712 | lastPAR[15]=400./a12+2.e-22*a9; // p1 |
---|
| 713 | lastPAR[16]=1.e-32*a12/(1.+5.e22/a14); // p2 |
---|
| 714 | lastPAR[17]=1000./a2+9.5*sa*ssa; // p3 |
---|
| 715 | lastPAR[18]=4.e-6*a*asa+1.e11/a16; // p4 |
---|
| 716 | lastPAR[19]=(120./a+.002*a2)/(1.+2.e14/a16); // p5 |
---|
| 717 | lastPAR[20]=9.+100./a; // p6 |
---|
| 718 | // The main quadratic (peh_sh) |
---|
| 719 | lastPAR[21]=.002*a3+3.e7/a6; // p1 |
---|
| 720 | lastPAR[22]=7.e-15*a4*asa; // p2 |
---|
| 721 | lastPAR[23]=9000./a4; // p3 |
---|
| 722 | // The 1st max pre-exponent (peh_qq) |
---|
| 723 | lastPAR[24]=.0011*asa/(1.+3.e34/a32/a4); // p1 |
---|
| 724 | lastPAR[25]=1.e-5*a2+2.e14/a16; // p2 |
---|
| 725 | lastPAR[26]=1.2e-11*a2/(1.+1.5e19/a12); // p3 |
---|
| 726 | lastPAR[27]=.016*asa/(1.+5.e16/a16); // p4 |
---|
| 727 | // The 1st max slope (peh_qs) |
---|
| 728 | lastPAR[28]=.002*a4/(1.+7.e7/std::pow(a-6.83,14)); // p1 |
---|
| 729 | lastPAR[29]=2.e6/a6+7.2/std::pow(a,.11); // p2 |
---|
| 730 | lastPAR[30]=11.*a3/(1.+7.e23/a16/a8); // p3 |
---|
| 731 | lastPAR[31]=100./asa; // p4 |
---|
| 732 | // The 2nd max pre-exponent (peh_ss) |
---|
| 733 | lastPAR[32]=(.1+4.4e-5*a2)/(1.+5.e5/a4); // p1 |
---|
| 734 | lastPAR[33]=3.5e-4*a2/(1.+1.e8/a8); // p2 |
---|
| 735 | lastPAR[34]=1.3+3.e5/a4; // p3 |
---|
| 736 | lastPAR[35]=500./(a2+50.)+3; // p4 |
---|
| 737 | lastPAR[36]=1.e-9/a+s4a16*s4a16; // p5 |
---|
| 738 | // The 2nd max slope (peh_sb) |
---|
| 739 | lastPAR[37]=.4*asa+3.e-9*a6; // p1 |
---|
| 740 | lastPAR[38]=.0005*a5; // p2 |
---|
| 741 | lastPAR[39]=.002*a5; // p3 |
---|
| 742 | lastPAR[40]=10.; // p4 |
---|
| 743 | // The effective pre-exponent (peh_us) |
---|
| 744 | lastPAR[41]=.05+.005*a; // p1 |
---|
| 745 | lastPAR[42]=7.e-8/sa; // p2 |
---|
| 746 | lastPAR[43]=.8*sa; // p3 |
---|
| 747 | lastPAR[44]=.02*sa; // p4 |
---|
| 748 | lastPAR[45]=1.e8/a3; // p5 |
---|
| 749 | lastPAR[46]=3.e32/(a32+1.e32); // p6 |
---|
| 750 | // The effective slope (peh_ub) |
---|
| 751 | lastPAR[47]=24.; // p1 |
---|
| 752 | lastPAR[48]=20./sa; // p2 |
---|
| 753 | lastPAR[49]=7.e3*a/(sa+1.); // p3 |
---|
| 754 | lastPAR[50]=900.*sa/(1.+500./a3); // p4 |
---|
| 755 | #ifdef pdebug |
---|
| 756 | G4cout<<"G4QElCS::CalcCS:ha "<<lastPAR[41]<<", "<<lastPAR[42]<<", "<<lastPAR[43] |
---|
| 757 | <<", "<<lastPAR[44]<<", "<<lastPAR[45]<<", "<<lastPAR[46]<<G4endl; |
---|
| 758 | #endif |
---|
| 759 | } |
---|
| 760 | // Parameter for lowEnergyNeutrons |
---|
| 761 | lastPAR[51]=1.e15+2.e27/a4/(1.+2.e-18*a16); |
---|
| 762 | } |
---|
| 763 | lastPAR[nLast]=pwd; |
---|
| 764 | // and initialize the zero element of the table |
---|
| 765 | G4double lp=lPMin; // ln(momentum) |
---|
| 766 | G4bool memCS=onlyCS; // ?? |
---|
| 767 | onlyCS=false; |
---|
| 768 | lastCST[0]=GetTabValues(lp, PDG, tgZ, tgN); // Calculate AMDB tables |
---|
| 769 | onlyCS=memCS; |
---|
| 770 | lastSST[0]=theSS; |
---|
| 771 | lastS1T[0]=theS1; |
---|
| 772 | lastB1T[0]=theB1; |
---|
| 773 | lastS2T[0]=theS2; |
---|
| 774 | lastB2T[0]=theB2; |
---|
| 775 | lastS3T[0]=theS3; |
---|
| 776 | lastB3T[0]=theB3; |
---|
| 777 | lastS4T[0]=theS4; |
---|
| 778 | lastB4T[0]=theB4; |
---|
| 779 | #ifdef pdebug |
---|
| 780 | G4cout<<"G4QElasticCrossSection::GetPTables:ip=0(init), lp="<<lp<<",S1="<<theS1 |
---|
| 781 | <<",B1="<<theB1<<",S2="<<theS2<<",B2="<<theB3<<",S3="<<theS3 |
---|
| 782 | <<",B3="<<theB3<<",S4="<<theS4<<",B4="<<theB4<<G4endl; |
---|
| 783 | #endif |
---|
| 784 | } |
---|
| 785 | if(LP>ILP) |
---|
| 786 | { |
---|
| 787 | G4int ini = static_cast<int>((ILP-lPMin+.000001)/dlnP)+1; // already inited till this |
---|
| 788 | if(ini<0) ini=0; |
---|
| 789 | if(ini<nPoints) |
---|
| 790 | { |
---|
| 791 | G4int fin = static_cast<int>((LP-lPMin)/dlnP)+1; // final bin of initialization |
---|
| 792 | if(fin>nPoints) fin=nLast; // Limit of the tabular initialization |
---|
| 793 | if(fin>=ini) |
---|
| 794 | { |
---|
| 795 | G4double lp=0.; |
---|
| 796 | for(G4int ip=ini; ip<=fin; ip++) // Calculate tabular CS,S1,B1,S2,B2,S3,B3 |
---|
| 797 | { |
---|
| 798 | lp=lPMin+ip*dlnP; // ln(momentum) |
---|
| 799 | G4bool memCS=onlyCS; |
---|
| 800 | onlyCS=false; |
---|
| 801 | lastCST[ip]=GetTabValues(lp, PDG, tgZ, tgN); // Calculate AMDB tables (ret CS) |
---|
| 802 | onlyCS=memCS; |
---|
| 803 | lastSST[ip]=theSS; |
---|
| 804 | lastS1T[ip]=theS1; |
---|
| 805 | lastB1T[ip]=theB1; |
---|
| 806 | lastS2T[ip]=theS2; |
---|
| 807 | lastB2T[ip]=theB2; |
---|
| 808 | lastS3T[ip]=theS3; |
---|
| 809 | lastB3T[ip]=theB3; |
---|
| 810 | lastS4T[ip]=theS4; |
---|
| 811 | lastB4T[ip]=theB4; |
---|
| 812 | #ifdef pdebug |
---|
| 813 | G4cout<<"G4QElasticCrossSection::GetPTables:ip="<<ip<<",lp="<<lp<<",S1="<<theS1 |
---|
| 814 | <<",B1="<<theB1<<",S2="<<theS2<<",B2="<<theB2<<",S3=" |
---|
| 815 | <<theS3<<",B3="<<theB3<<",S4="<<theS4<<",B4="<<theB4<<G4endl; |
---|
| 816 | #endif |
---|
| 817 | } |
---|
| 818 | return lp; |
---|
| 819 | } |
---|
| 820 | else G4cout<<"*Warning*G4QElasticCrossSection::GetPTables: PDG="<<PDG<<", Z="<<tgZ |
---|
| 821 | <<", N="<<tgN<<", i="<<ini<<" > fin="<<fin<<", LP="<<LP<<" > ILP="<<ILP |
---|
| 822 | <<" nothing is done!"<<G4endl; |
---|
| 823 | } |
---|
| 824 | else G4cout<<"*Warning*G4QElasticCrossSection::GetPTables: PDG="<<PDG<<", Z="<<tgZ |
---|
| 825 | <<", N="<<tgN<<", i="<<ini<<">= max="<<nPoints<<", LP="<<LP<<" > ILP=" |
---|
| 826 | <<ILP<<", lPMax="<<lPMax<<" nothing is done!"<<G4endl; |
---|
| 827 | } |
---|
| 828 | #ifdef pdebug |
---|
| 829 | else G4cout<<"*Warning*G4QElasticCrossSection::GetPTables: PDG="<<PDG<<", Z="<<tgZ |
---|
| 830 | <<", N="<<tgN<<", LP="<<LP<<" <= ILP="<<ILP<<" nothing is done!"<<G4endl; |
---|
| 831 | #endif |
---|
| 832 | } |
---|
| 833 | else |
---|
| 834 | { |
---|
| 835 | G4cout<<"*Error*G4QElasticCrossSection::GetPTables: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
| 836 | <<tgN<<", while it is defined only for PDG=2212(p)/2112(n)"<<G4endl; |
---|
| 837 | throw G4QException("G4QElasticCrossSection::GetPTables: only nA & pA are implemented"); |
---|
| 838 | } |
---|
| 839 | return ILP; |
---|
| 840 | } |
---|
| 841 | |
---|
| 842 | // Returns Q2=-t in independent units (MeV^2) (all internal calculations are in GeV) |
---|
| 843 | G4double G4QElasticCrossSection::GetExchangeT(G4int tgZ, G4int tgN, G4int PDG) |
---|
| 844 | { |
---|
| 845 | static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt; |
---|
| 846 | static const G4double third=1./3.; |
---|
| 847 | static const G4double fifth=1./5.; |
---|
| 848 | static const G4double sevth=1./7.; |
---|
| 849 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
---|
| 850 | { |
---|
| 851 | tgZ=1; |
---|
| 852 | tgN=1; |
---|
| 853 | if (PDG==2212) PDG=2112; |
---|
| 854 | else if(PDG==2112) PDG=2212; |
---|
| 855 | } |
---|
| 856 | #ifdef tdebug |
---|
| 857 | G4cout<<"G4QElasticCS::GetExchangeT:F="<<onlyCS<<",Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
| 858 | #endif |
---|
| 859 | if(onlyCS) G4cout<<"*Warning*G4QElasticCrossSection::GetExchangeQ2: onlyCS=true"<<G4endl; |
---|
| 860 | if(lastLP<-4.3) return lastTM*GeVSQ*G4UniformRand();// S-wave for p<14 MeV/c (kinE<.1MeV) |
---|
| 861 | G4double q2=0.; |
---|
| 862 | if(PDG==2112 && tgZ==1 && tgN==0) // ===> n+p=n+p |
---|
| 863 | { |
---|
| 864 | #ifdef tdebug |
---|
| 865 | G4cout<<"G4QElasticCS::GetExchangeT: TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1<<",S2=" |
---|
| 866 | <<theS2<<",B2="<<theB2<<",GeV2="<<GeVSQ<<G4endl; |
---|
| 867 | #endif |
---|
| 868 | G4double E1=lastTM*theB1; |
---|
| 869 | G4double R1=(1.-std::exp(-E1)); |
---|
| 870 | #ifdef tdebug |
---|
| 871 | G4double ts1=-std::log(1.-R1)/theB1; |
---|
| 872 | G4double ds1=std::fabs(ts1-lastTM)/lastTM; |
---|
| 873 | if(ds1>.0001) |
---|
| 874 | G4cout<<"*Warning*G4QElCS::GetExT:1n "<<ts1<<"#"<<lastTM<<",d="<<ds1 |
---|
| 875 | <<",R1="<<R1<<",E1="<<E1<<G4endl; |
---|
| 876 | #endif |
---|
| 877 | G4double E2=lastTM*theB2; |
---|
| 878 | G4double R2=(1.-std::exp(-E2)); |
---|
| 879 | #ifdef tdebug |
---|
| 880 | G4double ts2=-std::log(1.-R2)/theB2; |
---|
| 881 | G4double ds2=std::fabs(ts2-lastTM)/lastTM; |
---|
| 882 | if(ds2>.0001) |
---|
| 883 | G4cout<<"*Warning*G4QElCS::GetExT:2n "<<ts2<<"#"<<lastTM<<",d="<<ds2 |
---|
| 884 | <<",R2="<<R2<<",E2="<<E2<<G4endl; |
---|
| 885 | #endif |
---|
| 886 | //G4double E3=lastTM*theB3; |
---|
| 887 | //G4double R3=(1.-std::exp(-E3)); |
---|
| 888 | #ifdef tdebug |
---|
| 889 | //G4double ts3=-std::log(1.-R3)/theB3; |
---|
| 890 | //G4double ds3=std::fabs(ts3-lastTM)/lastTM; |
---|
| 891 | //if(ds3>.01)G4cout<<"*Warn*G4QElCS::GetExT:3n "<<ts3<<"#"<<lastTM<<",d="<<ds3<<G4endl; |
---|
| 892 | #endif |
---|
| 893 | G4double I1=R1*theS1; |
---|
| 894 | G4double I2=R2*theS2/theB2; |
---|
| 895 | //G4double I3=R3*theS3/theB3; |
---|
| 896 | G4double I12=I1+I2; |
---|
| 897 | //G4double rand=(I12+I3)*G4UniformRand(); |
---|
| 898 | G4double rand=I12*G4UniformRand(); |
---|
| 899 | if (rand<I1 ) |
---|
| 900 | { |
---|
| 901 | G4double ran=R1*G4UniformRand(); |
---|
| 902 | if(ran>1.) ran=1.; |
---|
| 903 | q2=-std::log(1.-ran)/theB1; // t-chan |
---|
| 904 | } |
---|
| 905 | else |
---|
| 906 | { |
---|
| 907 | G4double ran=R2*G4UniformRand(); |
---|
| 908 | if(ran>1.) ran=1.; |
---|
| 909 | q2=lastTM+std::log(1.-ran)/theB2; // u-chan (ChEx) |
---|
| 910 | } |
---|
| 911 | } |
---|
| 912 | else if(PDG==2212 && tgZ==1 && tgN==0) // ===> p+p=p+p |
---|
| 913 | { |
---|
| 914 | #ifdef tdebug |
---|
| 915 | G4cout<<"G4QElasticCS::GetExchangeT: TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1<<",S2=" |
---|
| 916 | <<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",GeV2="<<GeVSQ<<G4endl; |
---|
| 917 | #endif |
---|
| 918 | G4double E1=lastTM*theB1; |
---|
| 919 | G4double R1=(1.-std::exp(-E1)); |
---|
| 920 | #ifdef tdebug |
---|
| 921 | G4double ts1=-std::log(1.-R1)/theB1; |
---|
| 922 | G4double ds1=std::fabs(ts1-lastTM)/lastTM; |
---|
| 923 | if(ds1>.0001) |
---|
| 924 | G4cout<<"*Warning*G4QElCS::GetExT:1p "<<ts1<<"#"<<lastTM<<",d="<<ds1 |
---|
| 925 | <<",R1="<<R1<<",E1="<<E1<<G4endl; |
---|
| 926 | #endif |
---|
| 927 | G4double E2=lastTM*theB2; |
---|
| 928 | G4double R2=(1.-std::exp(-E2*E2*E2)); |
---|
| 929 | #ifdef tdebug |
---|
| 930 | G4double ts2=std::pow(-std::log(1.-R2),.333333333)/theB2; |
---|
| 931 | G4double ds2=std::fabs(ts2-lastTM)/lastTM; |
---|
| 932 | if(ds2>.0001) |
---|
| 933 | G4cout<<"*Warning*G4QElCS::GetExT:2p "<<ts2<<"#"<<lastTM<<",d="<<ds2 |
---|
| 934 | <<",R2="<<R2<<",E2="<<E2<<G4endl; |
---|
| 935 | #endif |
---|
| 936 | G4double E3=lastTM*theB3; |
---|
| 937 | G4double R3=(1.-std::exp(-E3)); |
---|
| 938 | #ifdef tdebug |
---|
| 939 | G4double ts3=-std::log(1.-R3)/theB3; |
---|
| 940 | G4double ds3=std::fabs(ts3-lastTM)/lastTM; |
---|
| 941 | if(ds3>.0001) |
---|
| 942 | G4cout<<"*Warning*G4QElCS::GetExT:3p "<<ts3<<"#"<<lastTM<<",d="<<ds3 |
---|
| 943 | <<",R3="<<R1<<",E3="<<E3<<G4endl; |
---|
| 944 | #endif |
---|
| 945 | G4double I1=R1*theS1/theB1; |
---|
| 946 | G4double I2=R2*theS2; |
---|
| 947 | G4double I3=R3*theS3; |
---|
| 948 | G4double I12=I1+I2; |
---|
| 949 | G4double rand=(I12+I3)*G4UniformRand(); |
---|
| 950 | if (rand<I1 ) |
---|
| 951 | { |
---|
| 952 | G4double ran=R1*G4UniformRand(); |
---|
| 953 | if(ran>1.) ran=1.; |
---|
| 954 | q2=-std::log(1.-ran)/theB1; |
---|
| 955 | } |
---|
| 956 | else if(rand<I12) |
---|
| 957 | { |
---|
| 958 | G4double ran=R2*G4UniformRand(); |
---|
| 959 | if(ran>1.) ran=1.; |
---|
| 960 | q2=-std::log(1.-ran); |
---|
| 961 | if(q2<0.) q2=0.; |
---|
| 962 | q2=std::pow(q2,third)/theB2; |
---|
| 963 | } |
---|
| 964 | else |
---|
| 965 | { |
---|
| 966 | G4double ran=R3*G4UniformRand(); |
---|
| 967 | if(ran>1.) ran=1.; |
---|
| 968 | q2=-std::log(1.-ran)/theB3; |
---|
| 969 | } |
---|
| 970 | } |
---|
| 971 | else if(PDG==2212 || PDG==2112) |
---|
| 972 | { |
---|
| 973 | G4double a=tgZ+tgN; |
---|
| 974 | #ifdef tdebug |
---|
| 975 | G4cout<<"G4QElCS::GetExT: a="<<a<<",t="<<lastTM<<",S1="<<theS1<<",B1="<<theB1<<",SS=" |
---|
| 976 | <<theSS<<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4=" |
---|
| 977 | <<theS4<<",B4="<<theB4<<G4endl; |
---|
| 978 | #endif |
---|
| 979 | G4double E1=lastTM*(theB1+lastTM*theSS); |
---|
| 980 | G4double R1=(1.-std::exp(-E1)); |
---|
| 981 | G4double tss=theSS+theSS; // for future solution of quadratic equation (imediate check) |
---|
| 982 | #ifdef tdebug |
---|
| 983 | G4double ts1=-std::log(1.-R1)/theB1; |
---|
| 984 | if(std::fabs(tss)>1.e-7) ts1=(std::sqrt(theB1*(theB1+(tss+tss)*ts1))-theB1)/tss; |
---|
| 985 | G4double ds1=(ts1-lastTM)/lastTM; |
---|
| 986 | if(ds1>.0001) |
---|
| 987 | G4cout<<"*Warning*G4QElCS::GetExT:1a "<<ts1<<"#"<<lastTM<<",d="<<ds1 |
---|
| 988 | <<",R1="<<R1<<",E1="<<E1<<G4endl; |
---|
| 989 | #endif |
---|
| 990 | G4double tm2=lastTM*lastTM; |
---|
| 991 | G4double E2=lastTM*tm2*theB2; // power 3 for lowA, 5 for HighA (1st) |
---|
| 992 | if(a>6.5)E2*=tm2; // for heavy nuclei |
---|
| 993 | G4double R2=(1.-std::exp(-E2)); |
---|
| 994 | #ifdef tdebug |
---|
| 995 | G4double ts2=-std::log(1.-R2)/theB2; |
---|
| 996 | if(a<6.5)ts2=std::pow(ts2,third); |
---|
| 997 | else ts2=std::pow(ts2,fifth); |
---|
| 998 | G4double ds2=std::fabs(ts2-lastTM)/lastTM; |
---|
| 999 | if(ds2>.0001) |
---|
| 1000 | G4cout<<"*Warning*G4QElCS::GetExT:2a "<<ts2<<"#"<<lastTM<<",d="<<ds2 |
---|
| 1001 | <<",R2="<<R2<<",E2="<<E2<<G4endl; |
---|
| 1002 | #endif |
---|
| 1003 | G4double E3=lastTM*theB3; |
---|
| 1004 | if(a>6.5)E3*=tm2*tm2*tm2; // power 1 for lowA, 7 (2nd) for HighA |
---|
| 1005 | G4double R3=(1.-std::exp(-E3)); |
---|
| 1006 | #ifdef tdebug |
---|
| 1007 | G4double ts3=-std::log(1.-R3)/theB3; |
---|
| 1008 | if(a>6.5)ts3=std::pow(ts3,sevth); |
---|
| 1009 | G4double ds3=std::fabs(ts3-lastTM)/lastTM; |
---|
| 1010 | if(ds3>.0001) |
---|
| 1011 | G4cout<<"*Warning*G4QElCS::GetExT:3a "<<ts3<<"#"<<lastTM<<",d="<<ds3 |
---|
| 1012 | <<",R3="<<R3<<",E3="<<E3<<G4endl; |
---|
| 1013 | #endif |
---|
| 1014 | G4double E4=lastTM*theB4; |
---|
| 1015 | G4double R4=(1.-std::exp(-E4)); |
---|
| 1016 | #ifdef tdebug |
---|
| 1017 | G4double ts4=-std::log(1.-R4)/theB4; |
---|
| 1018 | G4double ds4=std::fabs(ts4-lastTM)/lastTM; |
---|
| 1019 | if(ds4>.0001) |
---|
| 1020 | G4cout<<"*Warning*G4QElCS::GetExT:4a "<<ts4<<"#"<<lastTM<<",d="<<ds4 |
---|
| 1021 | <<",R4="<<R4<<",E4="<<E4<<G4endl; |
---|
| 1022 | #endif |
---|
| 1023 | G4double I1=R1*theS1; |
---|
| 1024 | G4double I2=R2*theS2; |
---|
| 1025 | G4double I3=R3*theS3; |
---|
| 1026 | G4double I4=R4*theS4; |
---|
| 1027 | G4double I12=I1+I2; |
---|
| 1028 | G4double I13=I12+I3; |
---|
| 1029 | G4double rand=(I13+I4)*G4UniformRand(); |
---|
| 1030 | #ifdef tdebug |
---|
| 1031 | G4cout<<"G4QElCS::GtExT:1="<<I1<<",2="<<I2<<",3="<<I3<<",4="<<I4<<",r="<<rand<<G4endl; |
---|
| 1032 | #endif |
---|
| 1033 | if(rand<I1) |
---|
| 1034 | { |
---|
| 1035 | G4double ran=R1*G4UniformRand(); |
---|
| 1036 | if(ran>1.) ran=1.; |
---|
| 1037 | q2=-std::log(1.-ran)/theB1; |
---|
| 1038 | if(std::fabs(tss)>1.e-7) q2=(std::sqrt(theB1*(theB1+(tss+tss)*q2))-theB1)/tss; |
---|
| 1039 | #ifdef tdebug |
---|
| 1040 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<",ss="<<tss/2<<",b1="<<theB1<<",t1="<<ts1<<G4endl; |
---|
| 1041 | #endif |
---|
| 1042 | } |
---|
| 1043 | else if(rand<I12) |
---|
| 1044 | { |
---|
| 1045 | G4double ran=R2*G4UniformRand(); |
---|
| 1046 | if(ran>1.) ran=1.; |
---|
| 1047 | q2=-std::log(1.-ran)/theB2; |
---|
| 1048 | if(q2<0.) q2=0.; |
---|
| 1049 | if(a<6.5) q2=std::pow(q2,third); |
---|
| 1050 | else q2=std::pow(q2,fifth); |
---|
| 1051 | #ifdef tdebug |
---|
| 1052 | G4cout<<"G4QElCS::GetExT: Q2="<<q2<<", r2="<<R2<<", b2="<<theB2<<",t2="<<ts2<<G4endl; |
---|
| 1053 | #endif |
---|
| 1054 | } |
---|
| 1055 | else if(rand<I13) |
---|
| 1056 | { |
---|
| 1057 | G4double ran=R3*G4UniformRand(); |
---|
| 1058 | if(ran>1.) ran=1.; |
---|
| 1059 | q2=-std::log(1.-ran)/theB3; |
---|
| 1060 | if(q2<0.) q2=0.; |
---|
| 1061 | if(a>6.5) q2=std::pow(q2,sevth); |
---|
| 1062 | #ifdef tdebug |
---|
| 1063 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<", r3="<<R2<<", b3="<<theB2<<",t3="<<ts2<<G4endl; |
---|
| 1064 | #endif |
---|
| 1065 | } |
---|
| 1066 | else |
---|
| 1067 | { |
---|
| 1068 | G4double ran=R4*G4UniformRand(); |
---|
| 1069 | if(ran>1.) ran=1.; |
---|
| 1070 | q2=-std::log(1.-ran)/theB4; |
---|
| 1071 | if(a<6.5) q2=lastTM-q2; // u reduced for lightA (starts from 0) |
---|
| 1072 | #ifdef tdebug |
---|
| 1073 | G4cout<<"G4QElCS::GetExT:Q2="<<q2<<",m="<<lastTM<<",b4="<<theB3<<",t4="<<ts3<<G4endl; |
---|
| 1074 | #endif |
---|
| 1075 | } |
---|
| 1076 | } |
---|
| 1077 | else |
---|
| 1078 | { |
---|
| 1079 | G4cout<<"*Error*G4QElasticCrossSection::GetExchangeT: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
| 1080 | <<tgN<<", while it is defined only for PDG=2212 & PDG==2112"<<G4endl; |
---|
| 1081 | throw G4QException("G4QElasticCrossSection::GetExchangeT: nA and pA are implemented"); |
---|
| 1082 | } |
---|
| 1083 | if(q2<0.) q2=0.; |
---|
| 1084 | if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElasticCrossSect::GetExchangeT: -t="<<q2<<G4endl; |
---|
| 1085 | if(q2>lastTM) |
---|
| 1086 | { |
---|
| 1087 | #ifdef tdebug |
---|
| 1088 | G4cout<<"*Warning*G4QElasticCrossSect::GetExT:-t="<<q2<<">"<<lastTM<<G4endl; |
---|
| 1089 | #endif |
---|
| 1090 | q2=lastTM; |
---|
| 1091 | } |
---|
| 1092 | return q2*GeVSQ; |
---|
| 1093 | } |
---|
| 1094 | |
---|
| 1095 | // Returns B in independent units (MeV^-2) (all internal calculations are in GeV) see ExT |
---|
| 1096 | G4double G4QElasticCrossSection::GetSlope(G4int tgZ, G4int tgN, G4int PDG) |
---|
| 1097 | { |
---|
| 1098 | static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt; |
---|
| 1099 | #ifdef tdebug |
---|
| 1100 | G4cout<<"G4QElasticCS::GetSlope:"<<onlyCS<<", Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
| 1101 | #endif |
---|
| 1102 | if(onlyCS) G4cout<<"*Warning*G4QElasticCrossSection::GetSlope: onlyCS=true"<<G4endl; |
---|
| 1103 | if(lastLP<-4.3) return 0.; // S-wave for p<14 MeV/c (kinE<.1MeV) |
---|
| 1104 | if(PDG!=2212 && PDG!=2112) |
---|
| 1105 | { |
---|
| 1106 | G4cout<<"*Error*G4QElasticCrossSection::GetSlope: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
| 1107 | <<tgN<<", while it is defined only for PDG=2212 & PDG=2112"<<G4endl; |
---|
| 1108 | throw G4QException("G4QElasticCrossSection::GetSlope: nA and pA are implemented"); |
---|
| 1109 | } |
---|
| 1110 | if(theB1<0.) theB1=0.; |
---|
| 1111 | if(!(theB1>=-1.||theB1<=1.))G4cout<<"*NAN*G4QElasticCrossSect::Getslope:"<<theB1<<G4endl; |
---|
| 1112 | return theB1/GeVSQ; |
---|
| 1113 | } |
---|
| 1114 | |
---|
| 1115 | // Returns half max(Q2=-t) in independent units (MeV^2) |
---|
| 1116 | G4double G4QElasticCrossSection::GetHMaxT() |
---|
| 1117 | { |
---|
| 1118 | static const G4double HGeVSQ=gigaelectronvolt*gigaelectronvolt/2.; |
---|
| 1119 | return lastTM*HGeVSQ; |
---|
| 1120 | } |
---|
| 1121 | |
---|
| 1122 | // lastLP is used, so calculating tables, one need to remember and then recover lastLP |
---|
| 1123 | G4double G4QElasticCrossSection::GetTabValues(G4double lp, G4int PDG, G4int tgZ,G4int tgN) |
---|
| 1124 | { |
---|
| 1125 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
---|
| 1126 | { |
---|
| 1127 | tgZ=1; |
---|
| 1128 | tgN=1; |
---|
| 1129 | if (PDG==2212) PDG=2112; |
---|
| 1130 | else if(PDG==2112) PDG=2212; |
---|
| 1131 | } |
---|
| 1132 | if(tgZ<0 || tgZ>92) |
---|
| 1133 | { |
---|
| 1134 | G4cout<<"*Warning*G4QElasticCS::GetTabValue: (1-92) No isotopes for Z="<<tgZ<<G4endl; |
---|
| 1135 | return 0.; |
---|
| 1136 | } |
---|
| 1137 | G4int iZ=tgZ-1; // Z index |
---|
| 1138 | if(iZ<0) |
---|
| 1139 | { |
---|
| 1140 | iZ=0; // conversion of the neutron target to the proton target |
---|
| 1141 | tgZ=1; |
---|
| 1142 | tgN=0; |
---|
| 1143 | } |
---|
| 1144 | //if(nN[iZ][0] < 0) |
---|
| 1145 | //{ |
---|
| 1146 | #ifdef isodebug |
---|
| 1147 | // G4cout<<"*Warning*G4QElasticCS::GetTabValue: No isotopes for Z="<<tgZ<<G4endl; |
---|
| 1148 | #endif |
---|
| 1149 | // return 0.; |
---|
| 1150 | //} |
---|
| 1151 | #ifdef pdebug |
---|
| 1152 | G4cout<<"G4QElasticCS::GetTabVal: lp="<<lp<<",Z="<<tgZ<<",N="<<tgN<<",PDG="<<PDG<<G4endl; |
---|
| 1153 | #endif |
---|
| 1154 | G4double p=std::exp(lp); // momentum |
---|
| 1155 | G4double sp=std::sqrt(p); // sqrt(p) |
---|
| 1156 | G4double p2=p*p; |
---|
| 1157 | G4double p3=p2*p; |
---|
| 1158 | G4double p4=p3*p; |
---|
| 1159 | if ( (PDG == 2112 && tgZ == 1 && tgN == 0) || |
---|
| 1160 | (PDG == 2212 && tgZ == 0 && tgN == 1) ) { // np/pn |
---|
| 1161 | |
---|
| 1162 | G4double ssp=std::sqrt(sp); // sqrt(sqrt(p))=p^.25 |
---|
| 1163 | G4double p2s=p2*sp; |
---|
| 1164 | G4double dl1=lp-lastPAR[3]; |
---|
| 1165 | theSS=lastPAR[21]; |
---|
| 1166 | theS1=(lastPAR[9]+lastPAR[10]*dl1*dl1+lastPAR[11]/p)/(1.+lastPAR[12]/p4) |
---|
| 1167 | +lastPAR[13]/(p4+lastPAR[14]); |
---|
| 1168 | theB1=(lastPAR[17]+lastPAR[18]/(p4*p4+lastPAR[19]*p3))/(1.+lastPAR[20]/p4); |
---|
| 1169 | theS2=(lastPAR[15]+lastPAR[16]/p4/p)/p3; |
---|
| 1170 | theB2=lastPAR[22]/(p*sp+lastPAR[23]); |
---|
| 1171 | theS3=0.; |
---|
| 1172 | theB3=0.; |
---|
| 1173 | theS4=0.; |
---|
| 1174 | theB4=0.; |
---|
| 1175 | #ifdef tdebug |
---|
| 1176 | G4cout<<"G4QElasticCS::GetTableValues:(np) TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1 |
---|
| 1177 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS1<<",B3="<<theB1<<G4endl; |
---|
| 1178 | #endif |
---|
| 1179 | // Returns the total elastic pp cross-section (to avoid spoiling lastSIG) |
---|
| 1180 | return lastPAR[0]/(p2s+lastPAR[1]*p+lastPAR[2]/ssp)+lastPAR[4]/p |
---|
| 1181 | +(lastPAR[5]+lastPAR[6]*dl1*dl1+lastPAR[7]/p)/(1.+lastPAR[8]/p4); |
---|
| 1182 | |
---|
| 1183 | } else if ( (PDG == 2212 && tgZ == 1 && tgN == 0) || |
---|
| 1184 | (PDG == 2112 && tgZ == 0 && tgN == 1) ) { // pp/nn |
---|
| 1185 | |
---|
| 1186 | G4double p2s=p2*sp; |
---|
| 1187 | G4double dl1=lp-lastPAR[3]; |
---|
| 1188 | G4double dl2=lp-lastPAR[8]; |
---|
| 1189 | theSS=lastPAR[31]; |
---|
| 1190 | theS1=(lastPAR[9]+lastPAR[10]*dl2*dl2)/(1.+lastPAR[11]/p4/p)+ |
---|
| 1191 | (lastPAR[12]/p2+lastPAR[13]*p)/(p4+lastPAR[14]*sp); |
---|
| 1192 | theB1=lastPAR[15]*std::pow(p,lastPAR[16])/(1.+lastPAR[17]/p3); |
---|
| 1193 | theS2=lastPAR[18]+lastPAR[19]/(p4+lastPAR[20]*p); |
---|
| 1194 | theB2=lastPAR[21]+lastPAR[22]/(p4+lastPAR[23]/sp); |
---|
| 1195 | theS3=lastPAR[24]+lastPAR[25]/(p4*p4+lastPAR[26]*p2+lastPAR[27]); |
---|
| 1196 | theB3=lastPAR[28]+lastPAR[29]/(p4+lastPAR[30]); |
---|
| 1197 | theS4=0.; |
---|
| 1198 | theB4=0.; |
---|
| 1199 | #ifdef tdebug |
---|
| 1200 | G4cout<<"G4QElasticCS::GetTableValues:(pp) TM="<<lastTM<<",S1="<<theS1<<",B1="<<theB1 |
---|
| 1201 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS1<<",B3="<<theB1<<G4endl; |
---|
| 1202 | #endif |
---|
| 1203 | // Returns the total elastic pp cross-section (to avoid spoiling lastSIG) |
---|
| 1204 | return lastPAR[0]/p2s/(1.+lastPAR[7]/p2s)+(lastPAR[1]+lastPAR[2]*dl1*dl1+lastPAR[4]/p) |
---|
| 1205 | /(1.+lastPAR[5]*lp)/(1.+lastPAR[6]/p4); |
---|
| 1206 | } |
---|
| 1207 | else if(PDG==2212 || PDG==2112) // n/p + A |
---|
| 1208 | { |
---|
| 1209 | G4double p5=p4*p; |
---|
| 1210 | G4double p6=p5*p; |
---|
| 1211 | G4double p8=p6*p2; |
---|
| 1212 | G4double p10=p8*p2; |
---|
| 1213 | G4double p12=p10*p2; |
---|
| 1214 | G4double p16=p8*p8; |
---|
| 1215 | //G4double p24=p16*p8; |
---|
| 1216 | G4double dl=lp-5.; |
---|
| 1217 | G4double a=tgZ+tgN; |
---|
| 1218 | G4double pah=std::pow(p,a/2); |
---|
| 1219 | G4double pa=pah*pah; |
---|
| 1220 | G4double pa2=pa*pa; |
---|
| 1221 | if(a<6.5) |
---|
| 1222 | { |
---|
| 1223 | theS1=lastPAR[9]/(1.+lastPAR[10]*p4*pa)+lastPAR[11]/(p4+lastPAR[12]*p4/pa2)+ |
---|
| 1224 | (lastPAR[13]*dl*dl+lastPAR[14])/(1.+lastPAR[15]/p2); |
---|
| 1225 | theB1=(lastPAR[16]+lastPAR[17]*p2)/(p4+lastPAR[18]/pah)+lastPAR[19]; |
---|
| 1226 | theSS=lastPAR[20]/(1.+lastPAR[21]/p2)+lastPAR[22]/(p6/pa+lastPAR[23]/p16); |
---|
| 1227 | theS2=lastPAR[24]/(pa/p2+lastPAR[25]/p4)+lastPAR[26]; |
---|
| 1228 | theB2=lastPAR[27]*std::pow(p,lastPAR[28])+lastPAR[29]/(p8+lastPAR[30]/p16); |
---|
| 1229 | theS3=lastPAR[31]/(pa*p+lastPAR[32]/pa)+lastPAR[33]; |
---|
| 1230 | theB3=lastPAR[34]/(p3+lastPAR[35]/p6)+lastPAR[36]/(1.+lastPAR[37]/p2); |
---|
| 1231 | theS4=p2*(pah*lastPAR[38]*std::exp(-pah*lastPAR[39])+ |
---|
| 1232 | lastPAR[40]/(1.+lastPAR[41]*std::pow(p,lastPAR[42]))); |
---|
| 1233 | theB4=lastPAR[43]*pa/p2/(1.+pa*lastPAR[44]); |
---|
| 1234 | #ifdef tdebug |
---|
| 1235 | G4cout<<"G4QElCS::GetTabV: lA, p="<<p<<",S1="<<theS1<<",B1="<<theB1<<",SS="<<theSS |
---|
| 1236 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4="<<theS4 |
---|
| 1237 | <<",B4="<<theB4<<G4endl; |
---|
| 1238 | #endif |
---|
| 1239 | } |
---|
| 1240 | else |
---|
| 1241 | { |
---|
| 1242 | theS1=lastPAR[9]/(1.+lastPAR[10]/p4)+lastPAR[11]/(p4+lastPAR[12]/p2)+ |
---|
| 1243 | lastPAR[13]/(p5+lastPAR[14]/p16); |
---|
| 1244 | theB1=(lastPAR[15]/p8+lastPAR[19])/(p+lastPAR[16]/std::pow(p,lastPAR[20]))+ |
---|
| 1245 | lastPAR[17]/(1.+lastPAR[18]/p4); |
---|
| 1246 | theSS=lastPAR[21]/(p4/std::pow(p,lastPAR[23])+lastPAR[22]/p4); |
---|
| 1247 | theS2=lastPAR[24]/p4/(std::pow(p,lastPAR[25])+lastPAR[26]/p12)+lastPAR[27]; |
---|
| 1248 | theB2=lastPAR[28]/std::pow(p,lastPAR[29])+lastPAR[30]/std::pow(p,lastPAR[31]); |
---|
| 1249 | theS3=lastPAR[32]/std::pow(p,lastPAR[35])/(1.+lastPAR[36]/p12)+ |
---|
| 1250 | lastPAR[33]/(1.+lastPAR[34]/p6); |
---|
| 1251 | theB3=lastPAR[37]/p8+lastPAR[38]/p2+lastPAR[39]/(1.+lastPAR[40]/p8); |
---|
| 1252 | theS4=(lastPAR[41]/p4+lastPAR[46]/p)/(1.+lastPAR[42]/p10)+ |
---|
| 1253 | (lastPAR[43]+lastPAR[44]*dl*dl)/(1.+lastPAR[45]/p12); |
---|
| 1254 | theB4=lastPAR[47]/(1.+lastPAR[48]/p)+lastPAR[49]*p4/(1.+lastPAR[50]*p5); |
---|
| 1255 | #ifdef tdebug |
---|
| 1256 | G4cout<<"G4QElCS::GetTabV: hA, p="<<p<<",S1="<<theS1<<",B1="<<theB1<<",SS="<<theSS |
---|
| 1257 | <<",S2="<<theS2<<",B2="<<theB2<<",S3="<<theS3<<",B3="<<theB3<<",S4="<<theS4 |
---|
| 1258 | <<",B4="<<theB4<<G4endl; |
---|
| 1259 | #endif |
---|
| 1260 | } |
---|
| 1261 | // Returns the total elastic (n/p)A cross-section (to avoid spoiling lastSIG) |
---|
| 1262 | #ifdef tdebug |
---|
| 1263 | G4cout<<"G4QElCS::GetTabV: PDG="<<PDG<<",P="<<p<<",N="<<tgN<<",Z="<<tgZ<<G4endl; |
---|
| 1264 | #endif |
---|
| 1265 | //if(PDG!=2112 || !tgN || p>.1) // No Low Energy neutron addition |
---|
| 1266 | if(PDG==2212) // Unique formula for protons |
---|
| 1267 | { |
---|
| 1268 | G4double rp16=lastPAR[6]/p16; |
---|
| 1269 | return (lastPAR[0]*dl*dl+lastPAR[1])/(1.+lastPAR[2]/p)+lastPAR[3]/(p4+lastPAR[4]/p2) |
---|
| 1270 | + lastPAR[5]/(p5+rp16*rp16)+lastPAR[7]/(p4+lastPAR[8]/p4); |
---|
| 1271 | } |
---|
| 1272 | else if(a<6.5) // neutrons on light nuclei |
---|
| 1273 | return (lastPAR[0]*dl*dl+lastPAR[1])/(1.+lastPAR[2]/p)+lastPAR[3]/(p4+lastPAR[4]/p2)+ |
---|
| 1274 | lastPAR[5]/(p5+lastPAR[6]/p8)+lastPAR[7]/(p4+lastPAR[8]); |
---|
| 1275 | else // neutrons on heavy nuclei |
---|
| 1276 | return (lastPAR[0]*dl*dl+lastPAR[1])/(1.+lastPAR[2]/p)+lastPAR[3]/(p4+lastPAR[4]/p2)+ |
---|
| 1277 | lastPAR[5]/(p8+lastPAR[6]/p8)+lastPAR[7]/(p2+lastPAR[8]); |
---|
| 1278 | //else |
---|
| 1279 | //{ |
---|
| 1280 | // G4int nI=nn[iZ]; |
---|
| 1281 | // for(G4int i=0; i<nI; i++) if(tgN==nN[iZ][i]) |
---|
| 1282 | // { |
---|
| 1283 | // G4double kE=p2/dNM; |
---|
| 1284 | #ifdef tdebug |
---|
| 1285 | // G4cout<<"G4QECS::GTV:P="<<p<<",E="<<kE<<",X="<<nX[iZ][i]<<",T="<<nT[iZ][i]<<G4endl; |
---|
| 1286 | #endif |
---|
| 1287 | // if(kE<nT[iZ][i]) return 0.; // 0 below the threshold (in MeV) |
---|
| 1288 | // if(p<2.) return nX[iZ][i]; // At very low momentum(<2MeV/c) -> only LECS |
---|
| 1289 | // return lastPAR[3]/(p4+lastPAR[4]/p2)+lastPAR[5]/(p5+rp16*rp16)+ |
---|
| 1290 | // lastPAR[7]/(p4+lastPAR[8]/p4)+nX[iZ][i]/(1.+lastPAR[51]*p16); |
---|
| 1291 | // } |
---|
| 1292 | //G4cerr<<"*G4QElCS::GTV:PDG="<<PDG<<",Z="<<tgZ<<",N="<<tgN<<": Sig not found"<<G4endl; |
---|
| 1293 | //} |
---|
| 1294 | } |
---|
| 1295 | else |
---|
| 1296 | { |
---|
| 1297 | G4cout<<"*Error*G4QElasticCrossSection::GetTabValues: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
| 1298 | <<tgN<<", while it is defined only for PDG=2212/2112, Z>0, N>0"<<G4endl; |
---|
| 1299 | throw G4QException("G4QElasticCrossSection::GetTabValues: only NA is implemented"); |
---|
| 1300 | } |
---|
| 1301 | return 0.; |
---|
| 1302 | } // End of GetTableValues |
---|
| 1303 | |
---|
| 1304 | // Returns max -t=Q2 (GeV^2) for the momentum pP(GeV) and the target nucleus (tgN,tgZ) |
---|
| 1305 | G4double G4QElasticCrossSection::GetQ2max(G4int PDG, G4int tgZ, G4int tgN, G4double pP) |
---|
| 1306 | { |
---|
| 1307 | static const G4double mNeut= G4QPDGCode(2112).GetMass()*.001; // MeV to GeV |
---|
| 1308 | static const G4double mProt= G4QPDGCode(2212).GetMass()*.001; // MeV to GeV |
---|
| 1309 | //static const G4double mLamb= G4QPDGCode(3122).GetMass()*.001; // MeV to GeV |
---|
| 1310 | //static const G4double mHe3 = G4QPDGCode(2112).GetNuclMass(2,1,0)*.001; // MeV to GeV |
---|
| 1311 | //static const G4double mAlph = G4QPDGCode(2112).GetNuclMass(2,2,0)*.001; // MeV to GeV |
---|
| 1312 | //static const G4double mDeut = G4QPDGCode(2112).GetNuclMass(1,1,0)*.001; // MeV to GeV |
---|
| 1313 | static const G4double mProt2= mProt*mProt; |
---|
| 1314 | static const G4double mNeut2= mNeut*mNeut; |
---|
| 1315 | //static const G4double mDeut2= mDeut*mDeut; |
---|
| 1316 | if(tgZ==0 && tgN==1) // Temporary change for Quasi-Elastic |
---|
| 1317 | { |
---|
| 1318 | tgZ=1; |
---|
| 1319 | tgN=1; |
---|
| 1320 | if (PDG==2212) PDG=2112; |
---|
| 1321 | else if(PDG==2112) PDG=2212; |
---|
| 1322 | } |
---|
| 1323 | G4double pP2=pP*pP; // squared momentum of the projectile |
---|
| 1324 | if(PDG==2212 && tgZ==1 && tgN==0) |
---|
| 1325 | { |
---|
| 1326 | G4double tMid=std::sqrt(pP2+mProt2)*mProt-mProt2; // CMS 90deg value of -t=Q2 (GeV^2) |
---|
| 1327 | return tMid+tMid; |
---|
| 1328 | } |
---|
| 1329 | else if(PDG==2112 && tgZ==0 && tgN==1) |
---|
| 1330 | { |
---|
| 1331 | G4double tMid=std::sqrt(pP2+mNeut2)*mNeut-mNeut2; // CMS 90deg value of -t=Q2 (GeV^2) |
---|
| 1332 | return tMid+tMid; |
---|
| 1333 | } |
---|
| 1334 | else if(PDG==2112 && (tgZ || tgN)) // ---> nA |
---|
| 1335 | { |
---|
| 1336 | G4double mt=mProt; // Target mass in GeV |
---|
| 1337 | if(tgN||tgZ>1) mt=G4QPDGCode(90000000+tgZ*1000+tgN).GetMass()*.001; // Target mass GeV |
---|
| 1338 | G4double dmt=mt+mt; |
---|
| 1339 | G4double s=dmt*std::sqrt(pP2+mNeut2)+mNeut2+mt*mt; // Mondelstam s (in GeV^2) |
---|
| 1340 | return dmt*dmt*pP2/s; |
---|
| 1341 | } |
---|
| 1342 | else if(PDG==2212 && (tgZ || tgN)) // ---> pA |
---|
| 1343 | { |
---|
| 1344 | G4double mt=G4QPDGCode(90000000+tgZ*1000+tgN).GetMass()*.001; // Target mass in GeV |
---|
| 1345 | G4double dmt=mt+mt; |
---|
| 1346 | G4double s=dmt*std::sqrt(pP2+mProt2)+mProt2+mt*mt; // Mondelstam s |
---|
| 1347 | return dmt*dmt*pP2/s; |
---|
| 1348 | } |
---|
| 1349 | else |
---|
| 1350 | { |
---|
| 1351 | G4cout<<"*Error*G4QElasticCrossSection::GetQ2max: PDG="<<PDG<<", Z="<<tgZ<<", N=" |
---|
| 1352 | <<tgN<<", while it is defined only for p,n projectiles & Z_target>0"<<G4endl; |
---|
| 1353 | throw G4QException("G4QElasticCrossSection::GetQ2max: only nA & pA are implemented"); |
---|
| 1354 | } |
---|
| 1355 | } |
---|