| 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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