| 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * DISCLAIMER * |
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| 4 | // * * |
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| 5 | // * The following disclaimer summarizes all the specific disclaimers * |
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| 6 | // * of contributors to this software. The specific disclaimers,which * |
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| 7 | // * govern, are listed with their locations in: * |
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| 8 | // * http://cern.ch/geant4/license * |
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| 9 | // * * |
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| 10 | // * Neither the authors of this software system, nor their employing * |
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| 11 | // * institutes,nor the agencies providing financial support for this * |
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| 12 | // * work make any representation or warranty, express or implied, * |
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| 13 | // * regarding this software system or assume any liability for its * |
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| 14 | // * use. * |
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| 15 | // * * |
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| 16 | // * This code implementation is the intellectual property of the * |
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| 17 | // * GEANT4 collaboration. * |
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| 18 | // * By copying, distributing or modifying the Program (or any work * |
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| 19 | // * based on the Program) you indicate your acceptance of this * |
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| 20 | // * statement, and all its terms. * |
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| 21 | // ******************************************************************** |
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| 22 | // |
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| 23 | // $Id: G4CrossSectionTest.cc,v 1.3 2009/06/15 10:35:12 gunter Exp $ |
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| 24 | // ------------------------------------------------------------------- |
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| 25 | // |
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| 26 | // ------------------------------------------------------------------- |
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| 27 | // GEANT 4 class file --- Copyright CERN 1998 |
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| 28 | // CERN Geneva Switzerland |
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| 29 | // |
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| 30 | // |
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| 31 | // File name: G4CrossSectionTest.cc |
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| 32 | // |
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| 33 | // Author: Maria Grazia Pia (pia@genova.infn.it), |
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| 34 | // |
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| 35 | // Creation date: 15 April 1999 |
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| 36 | // |
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| 37 | // Modifications: |
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| 38 | // |
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| 39 | // Dec- 2008 GF : migrate to root |
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| 40 | // |
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| 41 | // ------------------------------------------------------------------- |
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| 42 | |
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| 43 | #include "globals.hh" |
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| 44 | |
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| 45 | #include "G4ios.hh" |
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| 46 | #include <fstream> |
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| 47 | #include <iomanip> |
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| 48 | #include <iostream> |
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| 49 | #include <assert.h> |
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| 50 | |
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| 51 | #include "Randomize.hh" |
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| 52 | |
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| 53 | #include "G4ThreeVector.hh" |
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| 54 | #include "G4LorentzVector.hh" |
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| 55 | #include "G4LorentzRotation.hh" |
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| 56 | |
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| 57 | #include "G4AntiProton.hh" |
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| 58 | #include "G4Proton.hh" |
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| 59 | #include "G4AntiNeutron.hh" |
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| 60 | #include "G4Neutron.hh" |
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| 61 | #include "G4PionPlus.hh" |
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| 62 | #include "G4PionMinus.hh" |
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| 63 | #include "G4PionZero.hh" |
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| 64 | #include "G4KaonMinus.hh" |
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| 65 | #include "G4KaonPlus.hh" |
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| 66 | #include "G4Gamma.hh" |
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| 67 | #include "G4MuonMinus.hh" |
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| 68 | #include "G4MuonPlus.hh" |
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| 69 | #include "G4NeutrinoMu.hh" |
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| 70 | #include "G4AntiNeutrinoMu.hh" |
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| 71 | #include "G4Lambda.hh" |
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| 72 | |
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| 73 | #include "G4ParticleDefinition.hh" |
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| 74 | |
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| 75 | #include "G4VDecayChannel.hh" |
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| 76 | #include "G4DecayTable.hh" |
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| 77 | |
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| 78 | #include "G4KineticTrack.hh" |
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| 79 | #include "G4KineticTrackVector.hh" |
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| 80 | |
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| 81 | #include "G4VShortLivedParticle.hh" |
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| 82 | #include "G4ShortLivedConstructor.hh" |
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| 83 | #include "G4ParticleTable.hh" |
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| 84 | #include "G4ShortLivedTable.hh" |
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| 85 | #include "G4LeptonConstructor.hh" |
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| 86 | #include "G4BaryonConstructor.hh" |
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| 87 | #include "G4VCrossSectionSource.hh" |
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| 88 | #include "G4XAqmTotal.hh" |
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| 89 | #include "G4XAqmElastic.hh" |
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| 90 | #include "G4XNNTotalLowE.hh" |
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| 91 | #include "G4XPDGTotal.hh" |
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| 92 | #include "G4XNNTotal.hh" |
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| 93 | #include "G4XNNElastic.hh" |
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| 94 | #include "G4XPDGElastic.hh" |
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| 95 | #include "G4XNNElasticLowE.hh" |
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| 96 | #include "G4XnpElastic.hh" |
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| 97 | #include "G4XResonance.hh" |
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| 98 | |
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| 99 | #include "TFile.h" |
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| 100 | #include "TH1F.h" |
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| 101 | #include "TH1D.h" |
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| 102 | #include "TTree.h" |
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| 103 | |
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| 104 | #define G4FPE_DEBUG=1 |
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| 105 | |
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| 106 | #ifdef G4FPE_DEBUG |
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| 107 | #include "G4FPEDetection.hh" |
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| 108 | #endif |
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| 109 | |
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| 110 | G4ParticleDefinition* SelectTrackDef(int i); |
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| 111 | |
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| 112 | int main() |
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| 113 | { |
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| 114 | |
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| 115 | #ifdef G4FPE_DEBUG |
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| 116 | InvalidOperationDetection(); |
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| 117 | #endif |
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| 118 | std::string hFile="xsec.root"; |
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| 119 | TFile * rootFile = new TFile(hFile.c_str(),"CREATE"); |
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| 120 | if ( ! rootFile ) |
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| 121 | { |
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| 122 | std::cout << " Fail to create root file " << std::endl; |
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| 123 | exit(1); |
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| 124 | } |
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| 125 | |
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| 126 | TTree * Txs = new TTree("SEC","Secondary info"); |
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| 127 | |
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| 128 | struct xs_info { |
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| 129 | float cmsE; |
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| 130 | float sigma; |
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| 131 | }; |
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| 132 | xs_info xsec; |
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| 133 | Txs->Branch("secondaries",&xsec.cmsE,"cmsE/F:sigma/F"); |
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| 134 | |
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| 135 | |
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| 136 | TH1 * hSigma = new TH1F("1","CrossSection", 100,0.,10.); |
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| 137 | |
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| 138 | |
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| 139 | /* G4ParticleDefinition* gamma = G4Gamma::GammaDefinition(); |
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| 140 | |
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| 141 | G4ParticleDefinition* proton = G4Proton::ProtonDefinition(); |
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| 142 | G4ParticleDefinition* antiProton = G4AntiProton::AntiProtonDefinition(); |
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| 143 | G4ParticleDefinition* neutron = G4Neutron::NeutronDefinition(); |
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| 144 | G4ParticleDefinition* antiNeutron = G4AntiNeutron::AntiNeutronDefinition(); |
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| 145 | |
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| 146 | G4ParticleDefinition* pionPlus = G4PionPlus::PionPlusDefinition(); |
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| 147 | G4ParticleDefinition* pionMinus = G4PionMinus::PionMinusDefinition(); |
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| 148 | G4ParticleDefinition* pionZero = G4PionZero::PionZeroDefinition(); |
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| 149 | |
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| 150 | G4ParticleDefinition* kaonPlus = G4KaonPlus::KaonPlusDefinition(); |
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| 151 | G4ParticleDefinition* kaonMinus = G4KaonMinus::KaonMinusDefinition(); |
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| 152 | |
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| 153 | G4ParticleDefinition* lambda = G4Lambda::LambdaDefinition(); |
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| 154 | |
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| 155 | G4ParticleDefinition* theMuonPlus = G4MuonPlus::MuonPlusDefinition(); |
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| 156 | G4ParticleDefinition* theMuonMinus = G4MuonMinus::MuonMinusDefinition(); |
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| 157 | |
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| 158 | G4ParticleDefinition* theNeutrinoMu = G4NeutrinoMu::NeutrinoMuDefinition(); |
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| 159 | G4ParticleDefinition* theAntiNeutrinoMu = G4AntiNeutrinoMu::AntiNeutrinoMuDefinition(); |
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| 160 | */ |
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| 161 | G4BaryonConstructor Baryons; |
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| 162 | Baryons.ConstructParticle(); |
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| 163 | G4LeptonConstructor Leptons; |
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| 164 | Leptons.ConstructParticle(); |
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| 165 | G4ShortLivedConstructor ShortLived; |
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| 166 | ShortLived.ConstructParticle(); |
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| 167 | |
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| 168 | G4ParticleDefinition* definition1= SelectTrackDef(1); |
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| 169 | G4double mass1 = definition1->GetPDGMass(); |
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| 170 | |
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| 171 | // Formation time |
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| 172 | G4double time1 = 0.; |
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| 173 | // G4cout << "Formation time (ns)" << G4endl; |
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| 174 | // G4cin >> time1; |
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| 175 | // if (time1 < 0.) time1 = 0.; |
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| 176 | // time1 = time1 * ns; |
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| 177 | |
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| 178 | |
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| 179 | // Initial position |
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| 180 | G4double x1 = 0.; |
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| 181 | G4double y1 = 0.; |
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| 182 | G4double z1 = 0.; |
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| 183 | // G4cout <<"Initial position (cm) " << G4endl; |
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| 184 | // G4cin >> x1 >> y1 >> z1; |
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| 185 | G4ThreeVector position1(x1*cm, y1*cm, z1*cm); |
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| 186 | |
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| 187 | // Momentum |
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| 188 | G4double pzMin1, pzMax1; |
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| 189 | G4cout << "Pz min and max (GeV)" << G4endl; |
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| 190 | G4cin >> pzMin1 >> pzMax1; |
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| 191 | pzMin1 = pzMin1 * GeV; |
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| 192 | pzMax1 = pzMax1 * GeV; |
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| 193 | |
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| 194 | // Select track 2 |
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| 195 | |
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| 196 | G4cout << "---- Set KineticTrack 2 ----" << G4endl; |
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| 197 | G4int id2 = 0; |
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| 198 | G4cout << "1 p 2 ap 3 n 4 an 5 pi+ 6 pi- 7 K+ 8 K- " << G4endl; |
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| 199 | G4cin >> id2; |
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| 200 | |
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| 201 | G4ParticleDefinition* definition2= SelectTrackDef(2); |
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| 202 | G4double mass2 = definition2->GetPDGMass(); |
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| 203 | |
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| 204 | // Formation time |
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| 205 | G4double time2 = 0.; |
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| 206 | // G4cout << "Formation time (ns)" << G4endl; |
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| 207 | // G4cin >> time2; |
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| 208 | // if (time2 < 0.) time2 = 0.; |
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| 209 | // time2 = time2 * ns; |
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| 210 | |
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| 211 | // Initial position |
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| 212 | G4double x2 = 0.; |
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| 213 | G4double y2 = 0.; |
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| 214 | G4double z2 = 0.; |
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| 215 | // G4cout <<"Initial position (cm) " << G4endl; |
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| 216 | // G4cin >> x2 >> y2 >> z2; |
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| 217 | G4ThreeVector position2(x2*cm, y2*cm, z2*cm); |
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| 218 | |
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| 219 | // Momentum |
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| 220 | G4double pzMin2; |
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| 221 | G4double pzMax2; |
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| 222 | G4cout << "Pz min and max (GeV)" << G4endl; |
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| 223 | G4cin >> pzMin2 >> pzMax2; |
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| 224 | pzMin2 = pzMin2 * GeV; |
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| 225 | pzMax2 = pzMax2 * GeV; |
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| 226 | |
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| 227 | // Select CrossSectionSource |
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| 228 | |
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| 229 | G4cout << "CrossSectionSource: " << G4endl |
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| 230 | << "1) AqmElastic " |
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| 231 | << "2) AqmTotal " |
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| 232 | << "3) NNElastic " |
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| 233 | << "4) NNElasticLowE " |
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| 234 | << "5) NNTotal " << G4endl |
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| 235 | << "6) NNTotalLowE " |
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| 236 | << "7) PDGElastic " |
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| 237 | << "8) PDGTotal " |
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| 238 | << "9) Resonance " |
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| 239 | << "10) XnpElastic " |
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| 240 | << G4endl; |
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| 241 | |
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| 242 | G4int ids; |
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| 243 | G4cin >> ids; |
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| 244 | |
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| 245 | G4VCrossSectionSource* source; |
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| 246 | |
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| 247 | switch (ids) |
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| 248 | { |
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| 249 | case 1: |
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| 250 | source = new G4XAqmElastic; |
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| 251 | break; |
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| 252 | case 2: |
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| 253 | source = new G4XAqmTotal; |
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| 254 | break; |
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| 255 | case 3: |
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| 256 | source = new G4XNNElastic; |
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| 257 | break; |
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| 258 | case 4: |
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| 259 | source = new G4XNNElasticLowE; |
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| 260 | break; |
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| 261 | case 5: |
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| 262 | source = new G4XNNTotal; |
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| 263 | break; |
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| 264 | case 6: |
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| 265 | source = new G4XNNTotalLowE; |
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| 266 | break; |
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| 267 | case 7: |
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| 268 | source = new G4XPDGElastic(); |
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| 269 | break; |
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| 270 | case 8: |
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| 271 | source = new G4XPDGTotal(); |
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| 272 | break; |
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| 273 | case 9: |
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| 274 | // source = new G4XResonance; |
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| 275 | break; |
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| 276 | case 10: |
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| 277 | source = new G4XnpElastic; |
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| 278 | break; |
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| 279 | default: |
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| 280 | source = new G4XAqmTotal; |
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| 281 | break; |
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| 282 | } |
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| 283 | |
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| 284 | G4cout << "***** " << source->Name() << "***** created " << G4endl; |
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| 285 | source->Print(); |
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| 286 | |
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| 287 | // Number of iterations |
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| 288 | G4int n = 0; |
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| 289 | G4cout << "---- Number of iterations ----" << G4endl; |
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| 290 | G4cin >> n; |
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| 291 | if (n < 1) n = 1; |
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| 292 | |
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| 293 | G4double step1 = (pzMax1 - pzMin1) / n; |
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| 294 | G4double step2 = (pzMax2 - pzMin2) / n; |
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| 295 | |
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| 296 | G4cout << "pz min max step " |
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| 297 | << pzMin1 / GeV << ", " |
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| 298 | << pzMax1 / GeV << ", " |
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| 299 | << step1 / GeV << ", " << G4endl |
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| 300 | << "pz min max step " |
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| 301 | << pzMin2 / GeV << ", " |
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| 302 | << pzMax2 / GeV << ", " |
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| 303 | << step2 / GeV << G4endl; |
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| 304 | |
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| 305 | G4int i; |
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| 306 | for (i=0; i<n; i++) |
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| 307 | { |
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| 308 | G4double pStep1 = pzMin1 + step1 * i; |
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| 309 | G4ThreeVector p1(0.,0.,pStep1); |
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| 310 | G4double e1 = sqrt(mass1*mass1 + p1.mag()*p1.mag()); |
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| 311 | G4LorentzVector p41(p1,e1); |
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| 312 | G4KineticTrack trk1(definition1,time1,position1,p41); |
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| 313 | |
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| 314 | G4double pStep2 = -(pzMin2 + step2 * i); |
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| 315 | G4ThreeVector p2(0.,0.,pStep2); |
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| 316 | G4double e2 = sqrt(mass2*mass2 + p2.mag()*p2.mag()); |
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| 317 | G4LorentzVector p42(p2,e2); |
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| 318 | G4KineticTrack trk2(definition2,time2,position2,p42); |
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| 319 | |
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| 320 | G4double sqrts = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag(); |
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| 321 | |
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| 322 | // G4cout << "*-*-*-*-* Step " << i |
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| 323 | // << " - pz1, pz2 = " << pStep1 << ", " << pStep2 |
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| 324 | // << " - e1, e2 = " << e1 << ", " << e2 |
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| 325 | // << " - p41.m(), p42.m() = " << trk1.Get4Momentum().m() << ", " << trk2.Get4Momentum().m() |
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| 326 | // << " ----- sqrtS = " << sqrts << G4endl; |
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| 327 | |
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| 328 | |
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| 329 | source->PrintAll(trk1,trk2); |
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| 330 | |
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| 331 | G4double sigma = source->CrossSection(trk1,trk2); |
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| 332 | |
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| 333 | // G4cout << "Energy: " << sqrts / GeV |
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| 334 | // << " ---- CrossSection = " << sigma / millibarn |
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| 335 | // << G4endl; |
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| 336 | |
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| 337 | xsec.cmsE=sqrts/GeV; |
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| 338 | xsec.sigma=sigma/millibarn; |
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| 339 | Txs->Fill(); |
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| 340 | } |
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| 341 | |
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| 342 | std::cout << "Committing..." << std::endl; |
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| 343 | rootFile->Write(); |
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| 344 | |
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| 345 | |
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| 346 | delete source; |
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| 347 | |
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| 348 | return EXIT_SUCCESS; |
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| 349 | } |
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| 350 | |
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| 351 | G4ParticleDefinition* SelectTrackDef(int i) |
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| 352 | { |
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| 353 | G4cout << "---- Set KineticTrack " << i << " ----" << G4endl; |
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| 354 | G4int id = 0; |
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| 355 | G4cout << "1 p 2 ap 3 n 4 an 5 pi+ 6 pi- 7 K+ 8 K- " << G4endl; |
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| 356 | G4cin >> id; |
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| 357 | |
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| 358 | G4ParticleDefinition* pDef; |
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| 359 | switch (id) |
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| 360 | { |
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| 361 | case 1: |
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| 362 | pDef = G4Proton::Proton(); |
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| 363 | break; |
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| 364 | case 2: |
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| 365 | pDef = G4AntiProton::AntiProton(); |
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| 366 | break; |
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| 367 | case 3: |
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| 368 | pDef = G4Neutron::Neutron(); |
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| 369 | break; |
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| 370 | case 4: |
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| 371 | pDef = G4AntiNeutron::AntiNeutron(); |
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| 372 | break; |
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| 373 | case 5: |
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| 374 | pDef = G4PionPlus::PionPlus(); |
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| 375 | break; |
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| 376 | case 6: |
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| 377 | pDef = G4PionMinus::PionMinus(); |
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| 378 | break; |
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| 379 | case 7: |
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| 380 | pDef = G4KaonPlus::KaonPlus(); |
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| 381 | break; |
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| 382 | case 8: |
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| 383 | pDef = G4KaonMinus::KaonMinus(); |
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| 384 | break; |
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| 385 | default: |
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| 386 | pDef = G4Proton::Proton(); |
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| 387 | break; |
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| 388 | } |
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| 389 | return pDef; |
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| 390 | } |
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