[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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[962] | 27 | // $Id: G4DiffractiveExcitation.cc,v 1.7 2008/12/18 13:01:58 gunter Exp $ |
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[819] | 28 | // ------------------------------------------------------------ |
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| 29 | // GEANT 4 class implemetation file |
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| 30 | // |
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| 31 | // ---------------- G4DiffractiveExcitation -------------- |
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| 32 | // by Gunter Folger, October 1998. |
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[962] | 33 | // diffractive Excitation used by strings models |
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| 34 | // Take a projectile and a target |
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| 35 | // excite the projectile and target |
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[819] | 36 | // Essential changed by V. Uzhinsky in November - December 2006 |
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| 37 | // in order to put it in a correspondence with original FRITIOF |
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| 38 | // model. Variant of FRITIOF with nucleon de-excitation is implemented. |
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| 39 | // Other changes by V.Uzhinsky in May 2007 were introduced to fit |
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[962] | 40 | // meson-nucleon interactions. Additional changes by V. Uzhinsky |
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| 41 | // were introduced in December 2006. They treat diffraction dissociation |
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| 42 | // processes more exactly. |
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[819] | 43 | // --------------------------------------------------------------------- |
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| 44 | |
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| 45 | |
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| 46 | #include "globals.hh" |
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| 47 | #include "Randomize.hh" |
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| 48 | |
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| 49 | #include "G4DiffractiveExcitation.hh" |
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| 50 | #include "G4LorentzRotation.hh" |
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| 51 | #include "G4ThreeVector.hh" |
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| 52 | #include "G4ParticleDefinition.hh" |
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| 53 | #include "G4VSplitableHadron.hh" |
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| 54 | #include "G4ExcitedString.hh" |
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[962] | 55 | #include "G4FTFParameters.hh" // Uzhi 19.04.08 |
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[819] | 56 | //#include "G4ios.hh" |
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[962] | 57 | //#include "UZHI_diffraction.hh" |
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[819] | 58 | |
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[962] | 59 | G4DiffractiveExcitation::G4DiffractiveExcitation() |
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[819] | 60 | { |
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| 61 | } |
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| 62 | |
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[962] | 63 | // --------------------------------------------------------------------- |
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[819] | 64 | G4bool G4DiffractiveExcitation:: |
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[962] | 65 | ExciteParticipants(G4VSplitableHadron *projectile, |
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| 66 | G4VSplitableHadron *target, |
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| 67 | G4FTFParameters *theParameters) const |
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[819] | 68 | { |
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[962] | 69 | G4bool PutOnMassShell=0; |
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[819] | 70 | |
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[962] | 71 | // -------------------- Projectile parameters ----------------------- |
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[819] | 72 | |
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[962] | 73 | G4LorentzVector Pprojectile=projectile->Get4Momentum(); |
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| 74 | // G4double M0projectile=projectile->GetDefinition()->GetPDGMass(); // With de-excitation |
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| 75 | G4double M0projectile = Pprojectile.mag(); // Without de-excitation |
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| 76 | /* |
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| 77 | G4cout<<"ExciteParticipants-------------------"<<G4endl; |
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| 78 | G4cout<<"Mom "<<Pprojectile<<" mass "<<M0projectile<<G4endl; |
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| 79 | */ |
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| 80 | if(M0projectile < projectile->GetDefinition()->GetPDGMass()) |
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| 81 | { |
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| 82 | PutOnMassShell=1; |
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| 83 | M0projectile=projectile->GetDefinition()->GetPDGMass(); |
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| 84 | } |
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[819] | 85 | |
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[962] | 86 | G4double M0projectile2 = M0projectile * M0projectile; |
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[819] | 87 | |
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[962] | 88 | G4int PDGcode=projectile->GetDefinition()->GetPDGEncoding(); |
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| 89 | G4int absPDGcode=std::abs(PDGcode); |
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[819] | 90 | |
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[962] | 91 | G4double ProjectileDiffStateMinMass=theParameters->GetProjMinDiffMass(); |
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| 92 | G4double ProjectileNonDiffStateMinMass=theParameters->GetProjMinNonDiffMass(); |
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| 93 | G4double ProbProjectileDiffraction=theParameters->GetProbabilityOfProjDiff(); |
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| 94 | /* |
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| 95 | G4cout<<ProjectileDiffStateMinMass<<" "<<ProjectileNonDiffStateMinMass<<" "<<ProbProjectileDiffraction<<G4endl; |
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| 96 | */ |
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| 97 | // -------------------- Target paraExciteParticipantsmeters ------------------------- |
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| 98 | G4LorentzVector Ptarget=target->Get4Momentum(); |
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| 99 | G4double M0target = Ptarget.mag(); |
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[819] | 100 | |
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[962] | 101 | //G4cout<<"Mom "<<Ptarget<<" mass "<<M0target<<G4endl; |
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[819] | 102 | |
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[962] | 103 | if(M0target < target->GetDefinition()->GetPDGMass()) |
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| 104 | { |
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| 105 | PutOnMassShell=1; |
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| 106 | M0target=target->GetDefinition()->GetPDGMass(); |
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| 107 | } |
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[819] | 108 | |
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[962] | 109 | G4double M0target2 = M0target * M0target; //Ptarget.mag2(); |
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| 110 | // for AA-inter. |
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| 111 | G4double TargetDiffStateMinMass=theParameters->GetTarMinDiffMass(); |
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| 112 | G4double TargetNonDiffStateMinMass=theParameters->GetTarMinNonDiffMass(); |
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| 113 | G4double ProbTargetDiffraction=theParameters->GetProbabilityOfTarDiff(); |
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| 114 | /* |
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| 115 | G4cout<<TargetDiffStateMinMass<<" "<<TargetNonDiffStateMinMass<<" "<<ProbTargetDiffraction<<G4endl; |
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| 116 | */ |
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| 117 | G4double AveragePt2=theParameters->GetAveragePt2(); |
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[819] | 118 | |
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[962] | 119 | // Kinematical properties of the interactions -------------- |
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| 120 | G4LorentzVector Psum; // 4-momentum in CMS |
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| 121 | Psum=Pprojectile+Ptarget; |
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| 122 | G4double S=Psum.mag2(); |
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[819] | 123 | |
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[962] | 124 | //G4cout<<" sqrt(s) "<<std::sqrt(S)<<G4endl; |
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[819] | 125 | |
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[962] | 126 | // ------------------------------------------------------------------ |
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[819] | 127 | |
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[962] | 128 | //ProbProjectileDiffraction=1.; |
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| 129 | //ProbTargetDiffraction =1.; |
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| 130 | G4double ProbOfDiffraction=ProbProjectileDiffraction + |
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| 131 | ProbTargetDiffraction; |
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[819] | 132 | |
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[962] | 133 | if(ProbOfDiffraction!=0.) |
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| 134 | { |
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| 135 | ProbProjectileDiffraction/=ProbOfDiffraction; |
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| 136 | } |
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| 137 | else |
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| 138 | { |
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| 139 | ProbProjectileDiffraction=0.; |
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| 140 | } |
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| 141 | // ProbTargetDiffraction /=ProbOfDiffraction; |
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[819] | 142 | |
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[962] | 143 | //G4cout<<"ProbOfDiffraction "<<ProbOfDiffraction<<"ProbProjectileDiffraction "<<ProbProjectileDiffraction<<G4endl; // Vova |
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[819] | 144 | |
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[962] | 145 | G4double ProjectileDiffStateMinMass2 = ProjectileDiffStateMinMass * |
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| 146 | ProjectileDiffStateMinMass; |
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| 147 | G4double ProjectileNonDiffStateMinMass2 = ProjectileNonDiffStateMinMass * |
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| 148 | ProjectileNonDiffStateMinMass; |
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[819] | 149 | |
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[962] | 150 | G4double TargetDiffStateMinMass2 = TargetDiffStateMinMass * |
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| 151 | TargetDiffStateMinMass; |
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| 152 | G4double TargetNonDiffStateMinMass2 = TargetNonDiffStateMinMass * |
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| 153 | TargetNonDiffStateMinMass; |
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| 154 | |
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[819] | 155 | // Transform momenta to cms and then rotate parallel to z axis; |
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| 156 | |
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[962] | 157 | // G4LorentzVector Psum; |
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| 158 | // Psum=Pprojectile+Ptarget; |
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[819] | 159 | |
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[962] | 160 | G4LorentzRotation toCms(-1*Psum.boostVector()); |
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[819] | 161 | |
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[962] | 162 | G4LorentzVector Ptmp=toCms*Pprojectile; |
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| 163 | if ( Ptmp.pz() <= 0. ) |
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| 164 | { |
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[819] | 165 | // "String" moving backwards in CMS, abort collision !! |
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| 166 | //G4cout << " abort Collision!! " << G4endl; |
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[962] | 167 | return false; |
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| 168 | } |
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[819] | 169 | |
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[962] | 170 | toCms.rotateZ(-1*Ptmp.phi()); |
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| 171 | toCms.rotateY(-1*Ptmp.theta()); |
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[819] | 172 | |
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[962] | 173 | G4LorentzRotation toLab(toCms.inverse()); |
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[819] | 174 | |
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[962] | 175 | Pprojectile.transform(toCms); |
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| 176 | Ptarget.transform(toCms); |
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[819] | 177 | |
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[962] | 178 | G4double Pt2; |
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| 179 | G4double ProjMassT2, ProjMassT; |
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| 180 | G4double TargMassT2, TargMassT; |
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| 181 | G4double PZcms2, PZcms; |
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| 182 | G4double PMinusMin, PMinusMax; |
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| 183 | // G4double PPlusMin , PPlusMax; |
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| 184 | G4double TPlusMin , TPlusMax; |
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| 185 | G4double PMinusNew, PPlusNew, TPlusNew, TMinusNew; |
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[819] | 186 | |
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[962] | 187 | // G4double S=Psum.mag2(); |
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| 188 | G4double SqrtS=std::sqrt(S); |
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[819] | 189 | |
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[962] | 190 | if(absPDGcode > 1000 && SqrtS < 2200*MeV) |
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| 191 | {return false;} // The model cannot work for |
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| 192 | // p+p-interactions |
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| 193 | // at Plab < 1.3 GeV/c. |
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[819] | 194 | |
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[962] | 195 | if(( absPDGcode == 211 || PDGcode == 111) && SqrtS < 1600*MeV) |
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| 196 | {return false;} // The model cannot work for |
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| 197 | // Pi+p-interactions |
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| 198 | // at Plab < 1. GeV/c. |
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[819] | 199 | |
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[962] | 200 | if(( absPDGcode == 321 || PDGcode == -311) && SqrtS < 1600*MeV) |
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| 201 | {return false;} // The model cannot work for |
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| 202 | // K+p-interactions |
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| 203 | // at Plab < ??? GeV/c. ??? |
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[819] | 204 | |
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[962] | 205 | PZcms2=(S*S+M0projectile2*M0projectile2+M0target2*M0target2- |
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| 206 | 2*S*M0projectile2 - 2*S*M0target2 - 2*M0projectile2*M0target2) |
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| 207 | /4./S; |
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[819] | 208 | |
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[962] | 209 | if(PZcms2 < 0) |
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| 210 | {return false;} // It can be in an interaction with off-shell nuclear nucleon |
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[819] | 211 | |
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[962] | 212 | PZcms = std::sqrt(PZcms2); |
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[819] | 213 | |
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[962] | 214 | if(PutOnMassShell) |
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| 215 | { |
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| 216 | if(Pprojectile.z() > 0.) |
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| 217 | { |
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| 218 | Pprojectile.setPz( PZcms); |
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| 219 | Ptarget.setPz( -PZcms); |
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| 220 | } |
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| 221 | else |
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| 222 | { |
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| 223 | Pprojectile.setPz(-PZcms); |
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| 224 | Ptarget.setPz( PZcms); |
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| 225 | }; |
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[819] | 226 | |
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[962] | 227 | Pprojectile.setE(std::sqrt(M0projectile2 + |
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| 228 | Pprojectile.x()*Pprojectile.x()+ |
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| 229 | Pprojectile.y()*Pprojectile.y()+ |
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| 230 | PZcms2)); |
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| 231 | Ptarget.setE(std::sqrt(M0target2 + |
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| 232 | Ptarget.x()*Ptarget.x()+ |
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| 233 | Ptarget.y()*Ptarget.y()+ |
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| 234 | PZcms2)); |
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| 235 | } |
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[819] | 236 | |
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[962] | 237 | G4double maxPtSquare; // = PZcms2; |
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| 238 | /* |
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| 239 | G4cout << "Pprojectile aft boost : " << Pprojectile <<" "<<Pprojectile.mag()<< G4endl; |
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| 240 | G4cout << "Ptarget aft boost : " << Ptarget <<" "<<Ptarget.mag()<< G4endl; |
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| 241 | G4cout << "cms aft boost : " << (Pprojectile+ Ptarget) << G4endl; |
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| 242 | G4cout << " Projectile Xplus / Xminus : " << |
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| 243 | Pprojectile.plus() << " / " << Pprojectile.minus() << G4endl; |
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| 244 | G4cout << " Target Xplus / Xminus : " << Ptarget.plus() << " / " << Ptarget.minus() << G4endl; |
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| 245 | G4cout<<"maxPtSquare "<<maxPtSquare<<G4endl; |
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| 246 | */ |
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| 247 | G4LorentzVector Qmomentum; |
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| 248 | G4double Qminus, Qplus; |
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[819] | 249 | |
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[962] | 250 | G4int whilecount=0; |
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| 251 | // Choose a process |
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[819] | 252 | |
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[962] | 253 | if(G4UniformRand() < ProbOfDiffraction) |
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| 254 | { |
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| 255 | if(G4UniformRand() < ProbProjectileDiffraction) |
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| 256 | { //-------- projectile diffraction --------------- |
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| 257 | //G4cout<<" Projectile diffraction"<<G4endl; |
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| 258 | //Uzhi_projectilediffraction++; |
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| 259 | do { |
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| 260 | // Generate pt |
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| 261 | // if (whilecount++ >= 500 && (whilecount%100)==0) |
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[819] | 262 | // G4cout << "G4DiffractiveExcitation::ExciteParticipants possibly looping" |
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[962] | 263 | // << ", loop count/ maxPtSquare : " |
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[819] | 264 | // << whilecount << " / " << maxPtSquare << G4endl; |
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[962] | 265 | if (whilecount > 1000 ) |
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| 266 | { |
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| 267 | Qmomentum=G4LorentzVector(0.,0.,0.,0.); |
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| 268 | return false; // Ignore this interaction |
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| 269 | }; |
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| 270 | // --------------- Check that the interaction is possible ----------- |
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| 271 | ProjMassT2=ProjectileDiffStateMinMass2; |
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| 272 | ProjMassT =ProjectileDiffStateMinMass; |
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[819] | 273 | |
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[962] | 274 | TargMassT2=M0target2; |
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| 275 | TargMassT =M0target; |
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[819] | 276 | |
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[962] | 277 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
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| 278 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
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| 279 | /4./S; |
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| 280 | //G4cout<<" Pt2 Mpt Mtt Pz2 "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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[819] | 281 | |
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[962] | 282 | if(PZcms2 < 0 ) |
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| 283 | { |
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| 284 | /* |
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| 285 | G4cout<<"whilecount "<<whilecount<<" "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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| 286 | G4int Uzhi; G4cin>>Uzhi; |
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| 287 | */ |
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| 288 | return false; |
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| 289 | }; |
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| 290 | maxPtSquare=PZcms2; |
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[819] | 291 | |
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[962] | 292 | Qmomentum=G4LorentzVector(GaussianPt(AveragePt2,maxPtSquare),0); |
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| 293 | Pt2=G4ThreeVector(Qmomentum.vect()).mag2(); |
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[819] | 294 | |
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[962] | 295 | ProjMassT2=ProjectileDiffStateMinMass2+Pt2; |
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| 296 | ProjMassT =std::sqrt(ProjMassT2); |
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[819] | 297 | |
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[962] | 298 | TargMassT2=M0target2+Pt2; |
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| 299 | TargMassT =std::sqrt(TargMassT2); |
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[819] | 300 | |
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[962] | 301 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
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| 302 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
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| 303 | /4./S; |
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| 304 | //G4cout<<" Pt2 Mpt Mtt Pz2 "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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[819] | 305 | |
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[962] | 306 | // if(PZcms2 < 0 ) {PZcms2=0;}; |
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| 307 | if(PZcms2 < 0 ) continue; |
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| 308 | PZcms =std::sqrt(PZcms2); |
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[819] | 309 | |
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[962] | 310 | PMinusMin=std::sqrt(ProjMassT2+PZcms2)-PZcms; |
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| 311 | PMinusMax=SqrtS-TargMassT; |
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| 312 | //G4cout<<" SqrtS P+mim max "<<SqrtS<<" "<<PMinusMin<<" "<<PMinusMax<<G4endl; |
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[819] | 313 | |
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[962] | 314 | PMinusNew=ChooseP(PMinusMin, PMinusMax); |
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| 315 | // PMinusNew=1./sqrt(1./PMinusMin-G4UniformRand()*(1./PMinusMin-1./PMinusMax)); |
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[819] | 316 | |
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[962] | 317 | TMinusNew=SqrtS-PMinusNew; |
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| 318 | Qminus=Ptarget.minus()-TMinusNew; |
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| 319 | TPlusNew=TargMassT2/TMinusNew; |
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| 320 | Qplus=Ptarget.plus()-TPlusNew; |
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[819] | 321 | |
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[962] | 322 | Qmomentum.setPz( (Qplus-Qminus)/2 ); |
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| 323 | Qmomentum.setE( (Qplus+Qminus)/2 ); |
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| 324 | } while ( |
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| 325 | ((Pprojectile+Qmomentum).mag2() < ProjectileDiffStateMinMass2) || //No without excitation |
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| 326 | ((Ptarget -Qmomentum).mag2() < M0target2 )); |
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| 327 | } |
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| 328 | else |
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| 329 | { // -------------- Target diffraction ---------------- |
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| 330 | //G4cout<<" Target difraction"<<G4endl; |
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| 331 | //Uzhi_targetdiffraction++; |
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| 332 | do { |
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| 333 | // Generate pt |
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| 334 | // if (whilecount++ >= 500 && (whilecount%100)==0) |
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| 335 | // G4cout << "G4DiffractiveExcitation::ExciteParticipants possibly looping" |
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| 336 | // << ", loop count/ maxPtSquare : " |
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| 337 | // << whilecount << " / " << maxPtSquare << G4endl; |
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| 338 | if (whilecount > 1000 ) |
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| 339 | { |
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| 340 | Qmomentum=G4LorentzVector(0.,0.,0.,0.); |
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| 341 | return false; // Ignore this interaction |
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| 342 | }; |
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| 343 | // --------------- Check that the interaction is possible ----------- |
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| 344 | ProjMassT2=M0projectile2; |
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| 345 | ProjMassT =M0projectile; |
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[819] | 346 | |
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[962] | 347 | TargMassT2=TargetDiffStateMinMass2; |
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| 348 | TargMassT =TargetDiffStateMinMass; |
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[819] | 349 | |
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[962] | 350 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
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| 351 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
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| 352 | /4./S; |
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| 353 | //G4cout<<" Pt2 Mpt Mtt Pz2 "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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[819] | 354 | |
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[962] | 355 | if(PZcms2 < 0 ) |
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| 356 | { |
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| 357 | /* |
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| 358 | G4cout<<"whilecount "<<whilecount<<" "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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| 359 | G4int Uzhi; G4cin>>Uzhi; |
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| 360 | */ |
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| 361 | return false; |
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| 362 | }; |
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| 363 | maxPtSquare=PZcms2; |
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[819] | 364 | |
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[962] | 365 | Qmomentum=G4LorentzVector(GaussianPt(AveragePt2,maxPtSquare),0); |
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| 366 | Pt2=G4ThreeVector(Qmomentum.vect()).mag2(); |
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[819] | 367 | |
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[962] | 368 | ProjMassT2=M0projectile2+Pt2; |
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| 369 | ProjMassT =std::sqrt(ProjMassT2); |
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| 370 | |
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| 371 | TargMassT2=TargetDiffStateMinMass2+Pt2; |
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| 372 | TargMassT =std::sqrt(TargMassT2); |
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| 373 | |
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| 374 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
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| 375 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
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| 376 | /4./S; |
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| 377 | /* |
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| 378 | if(PZcms2 < 0 ) |
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| 379 | { |
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| 380 | G4cout<<"whilecount "<<whilecount<<" "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
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| 381 | G4int Uzhi; G4cin>>Uzhi; |
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| 382 | return false; |
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| 383 | }; |
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| 384 | */ |
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| 385 | if(PZcms2 < 0 ) continue; |
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| 386 | PZcms =std::sqrt(PZcms2); |
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| 387 | |
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| 388 | TPlusMin=std::sqrt(TargMassT2+PZcms2)-PZcms; |
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| 389 | TPlusMax=SqrtS-ProjMassT; |
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| 390 | |
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| 391 | //G4cout<<" Tmin max "<<TPlusMin<<" "<<TPlusMax<<G4endl; |
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| 392 | |
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| 393 | TPlusNew=ChooseP(TPlusMin, TPlusMax); |
---|
| 394 | |
---|
| 395 | //TPlusNew=TPlusMax; |
---|
| 396 | //G4cout<<"T+new "<<TPlusNew<<G4endl; |
---|
| 397 | |
---|
| 398 | PPlusNew=SqrtS-TPlusNew; |
---|
| 399 | Qplus=PPlusNew-Pprojectile.plus(); |
---|
| 400 | PMinusNew=ProjMassT2/PPlusNew; |
---|
| 401 | Qminus=PMinusNew-Pprojectile.minus(); |
---|
| 402 | |
---|
| 403 | Qmomentum.setPz( (Qplus-Qminus)/2 ); |
---|
| 404 | Qmomentum.setE( (Qplus+Qminus)/2 ); |
---|
| 405 | |
---|
| 406 | } while ( |
---|
| 407 | ((Pprojectile+Qmomentum).mag2() < M0projectile2 ) || //No without excitation |
---|
| 408 | ((Ptarget -Qmomentum).mag2() < TargetDiffStateMinMass2)); |
---|
| 409 | } |
---|
| 410 | } |
---|
| 411 | else //----------- Non-diffraction process ------------ |
---|
| 412 | { |
---|
| 413 | //G4cout<<" Non-difraction"<<G4endl; |
---|
| 414 | do { |
---|
| 415 | // Generate pt |
---|
| 416 | // if (whilecount++ >= 500 && (whilecount%100)==0) |
---|
| 417 | // G4cout << "G4DiffractiveExcitation::ExciteParticipants possibly looping" |
---|
| 418 | // << ", loop count/ maxPtSquare : " |
---|
| 419 | // << whilecount << " / " << maxPtSquare << G4endl; |
---|
| 420 | if (whilecount > 1000 ) |
---|
[819] | 421 | { |
---|
[962] | 422 | Qmomentum=G4LorentzVector(0.,0.,0.,0.); |
---|
| 423 | return false; // Ignore this interaction |
---|
[819] | 424 | }; |
---|
[962] | 425 | // --------------- Check that the interaction is possible ----------- |
---|
| 426 | ProjMassT2=ProjectileNonDiffStateMinMass2; |
---|
| 427 | ProjMassT =ProjectileNonDiffStateMinMass; |
---|
[819] | 428 | |
---|
[962] | 429 | TargMassT2=TargetNonDiffStateMinMass2; |
---|
| 430 | TargMassT =TargetNonDiffStateMinMass; |
---|
[819] | 431 | |
---|
[962] | 432 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
---|
| 433 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
---|
| 434 | /4./S; |
---|
| 435 | //G4cout<<" Pt2 Mpt Mtt Pz2 "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
---|
| 436 | |
---|
| 437 | if(PZcms2 < 0 ) |
---|
| 438 | { |
---|
[819] | 439 | /* |
---|
[962] | 440 | G4cout<<"whilecount "<<whilecount<<" "<<Pt2<<" "<<ProjMassT<<" "<<TargMassT<<" "<<PZcms2<<G4endl; |
---|
| 441 | G4int Uzhi; G4cin>>Uzhi; |
---|
| 442 | */ |
---|
| 443 | return false; |
---|
| 444 | }; |
---|
| 445 | maxPtSquare=PZcms2; |
---|
| 446 | Qmomentum=G4LorentzVector(GaussianPt(AveragePt2,maxPtSquare),0); |
---|
| 447 | Pt2=G4ThreeVector(Qmomentum.vect()).mag2(); |
---|
[819] | 448 | |
---|
[962] | 449 | ProjMassT2=ProjectileNonDiffStateMinMass2+Pt2; |
---|
| 450 | ProjMassT =std::sqrt(ProjMassT2); |
---|
| 451 | |
---|
| 452 | TargMassT2=TargetNonDiffStateMinMass2+Pt2; |
---|
| 453 | TargMassT =std::sqrt(TargMassT2); |
---|
| 454 | |
---|
| 455 | PZcms2=(S*S + ProjMassT2*ProjMassT2 + TargMassT2*TargMassT2- |
---|
| 456 | 2.*S*ProjMassT2-2.*S*TargMassT2-2.*ProjMassT2*TargMassT2) |
---|
| 457 | /4./S; |
---|
| 458 | /* |
---|
| 459 | G4cout<<"ProjectileNonDiffStateMinMass2 "<<ProjectileNonDiffStateMinMass2<<G4endl; |
---|
| 460 | G4cout<<"TargetNonDiffStateMinMass2 "<<TargetNonDiffStateMinMass2<<G4endl; |
---|
| 461 | G4cout<<"Mt "<<ProjMassT<<" "<<TargMassT<<" "<<Pt2<<" "<<PZcms2<<G4endl<<G4endl; |
---|
[819] | 462 | */ |
---|
[962] | 463 | // if(PZcms2 < 0 ) {PZcms2=0;}; |
---|
| 464 | if(PZcms2 < 0 ) continue; |
---|
| 465 | PZcms =std::sqrt(PZcms2); |
---|
[819] | 466 | |
---|
[962] | 467 | PMinusMin=std::sqrt(ProjMassT2+PZcms2)-PZcms; |
---|
| 468 | PMinusMax=SqrtS-TargMassT; |
---|
[819] | 469 | |
---|
[962] | 470 | PMinusNew=ChooseP(PMinusMin, PMinusMax); |
---|
| 471 | // PMinusNew=1./sqrt(1./PMinusMin-G4UniformRand()*(1./PMinusMin-1./PMinusMax)); |
---|
| 472 | |
---|
| 473 | //G4cout<<"Proj "<<PMinusMin<<" "<<PMinusMax<<" "<<PMinusNew<<G4endl; |
---|
| 474 | |
---|
| 475 | //PMinusNew=PMinusMax; //+++++++++++++++++++++++++++++++++++ Vova |
---|
| 476 | |
---|
| 477 | Qminus=PMinusNew-Pprojectile.minus(); |
---|
| 478 | |
---|
| 479 | TPlusMin=std::sqrt(TargMassT2+PZcms2)-PZcms; |
---|
| 480 | // TPlusMax=SqrtS-PMinusNew; // Vova |
---|
| 481 | TPlusMax=SqrtS-ProjMassT; // Vova |
---|
| 482 | |
---|
| 483 | TPlusNew=ChooseP(TPlusMin, TPlusMax); |
---|
| 484 | |
---|
| 485 | //G4cout<<"Targ "<<TPlusMin<<" "<<TPlusMax<<" "<<TPlusNew<<G4endl; |
---|
| 486 | //G4cout<<PMinusNew<<" "<<TPlusNew<<G4endl; |
---|
| 487 | |
---|
| 488 | Qplus=-(TPlusNew-Ptarget.plus()); |
---|
| 489 | |
---|
| 490 | Qmomentum.setPz( (Qplus-Qminus)/2 ); |
---|
| 491 | Qmomentum.setE( (Qplus+Qminus)/2 ); |
---|
| 492 | /* |
---|
| 493 | G4cout << "Qplus / Qminus " << Qplus << " / " << Qminus<<G4endl; |
---|
| 494 | G4cout << "pt2" << pt2 << G4endl; |
---|
| 495 | G4cout << "Qmomentum " << Qmomentum << G4endl; |
---|
| 496 | G4cout << " Masses (P/T) : " << (Pprojectile+Qmomentum).mag() << |
---|
| 497 | " / " << (Ptarget-Qmomentum).mag() << G4endl; // mag() |
---|
| 498 | G4cout<<"Mprojectile "<<std::sqrt(M0projectile2)<<G4endl; |
---|
| 499 | G4cout<<"Mtarget "<<std::sqrt(M0target2 )<<G4endl; |
---|
| 500 | G4cout<<"ProjectileDiffStateMinMass "<<std::sqrt(ProjectileDiffStateMinMass2)<<G4endl; |
---|
| 501 | G4cout<<"TargetDiffStateMinMass "<<std::sqrt(TargetDiffStateMinMass2)<<G4endl; |
---|
| 502 | */ |
---|
| 503 | } while ( |
---|
| 504 | ((Pprojectile+Qmomentum).mag2() < ProjectileNonDiffStateMinMass2) || //No double Diffraction |
---|
| 505 | ((Ptarget -Qmomentum).mag2() < TargetNonDiffStateMinMass2 )); |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | //G4int Uzhiinp; G4cin>>Uzhiinp; // Vova |
---|
| 509 | |
---|
| 510 | Pprojectile += Qmomentum; |
---|
| 511 | Ptarget -= Qmomentum; |
---|
| 512 | /* |
---|
| 513 | G4cout << "Pprojectile with Q : " << Pprojectile << G4endl; |
---|
| 514 | G4cout << "Ptarget with Q : " << Ptarget << G4endl; |
---|
| 515 | G4cout << "Target mass " << Ptarget.mag() << G4endl; |
---|
| 516 | G4cout << "Projectile mass " << Pprojectile.mag() << G4endl; |
---|
| 517 | // |
---|
| 518 | //G4cout << "Projectile back: " << toLab * Pprojectile << G4endl; |
---|
| 519 | //G4cout << "Target back: " << toLab * Ptarget << G4endl; |
---|
| 520 | */ |
---|
| 521 | //-------------- Flip if projectale moves in backward direction ------------ |
---|
| 522 | //G4bool Flip=Pprojectile.pz()< 0.; |
---|
| 523 | |
---|
| 524 | |
---|
[819] | 525 | // Transform back and update SplitableHadron Participant. |
---|
| 526 | Pprojectile.transform(toLab); |
---|
| 527 | Ptarget.transform(toLab); |
---|
| 528 | |
---|
| 529 | //G4cout << "Pprojectile with Q M: " << Pprojectile<<" "<< Pprojectile.mag() << G4endl; |
---|
| 530 | //G4cout << "Ptarget with Q M: " << Ptarget <<" "<< Ptarget.mag() << G4endl; |
---|
[962] | 531 | //G4cout << "Target mass " << Ptarget.mag() << G4endl; |
---|
| 532 | //G4cout << "Projectile mass " << Pprojectile.mag() << G4endl; |
---|
[819] | 533 | |
---|
[962] | 534 | /* |
---|
| 535 | if(!Flip){ |
---|
| 536 | projectile->Set4Momentum(Pprojectile); |
---|
[819] | 537 | target->Set4Momentum(Ptarget); |
---|
[962] | 538 | } |
---|
| 539 | else { |
---|
| 540 | G4ParticleDefinition * t_Definition=projectile->GetDefinition(); |
---|
| 541 | projectile->SetDefinition(target->GetDefinition()); |
---|
| 542 | projectile->Set4Momentum(Ptarget); |
---|
| 543 | target->SetDefinition(t_Definition); |
---|
| 544 | target->Set4Momentum(Pprojectile); |
---|
| 545 | } |
---|
| 546 | */ |
---|
| 547 | // |
---|
| 548 | /* |
---|
| 549 | if(G4UniformRand() < 1.) { |
---|
| 550 | G4ParticleDefinition * t_Definition=projectile->GetDefinition(); |
---|
| 551 | projectile->SetDefinition(target->GetDefinition()); |
---|
| 552 | target->SetDefinition(t_Definition); |
---|
| 553 | } |
---|
| 554 | */ // For flip, for HARP |
---|
[819] | 555 | |
---|
[962] | 556 | G4double ZcoordinateOfCurrentInteraction = target->GetPosition().z(); |
---|
| 557 | // It is assumed that nucleon z-coordinates are ordered on increasing ----------- |
---|
[819] | 558 | |
---|
[962] | 559 | G4double betta_z=projectile->Get4Momentum().pz()/projectile->Get4Momentum().e(); |
---|
| 560 | |
---|
| 561 | G4double ZcoordinateOfPreviousCollision=projectile->GetPosition().z(); |
---|
| 562 | if(projectile->GetSoftCollisionCount()==0) { |
---|
| 563 | projectile->SetTimeOfCreation(0.); |
---|
| 564 | target->SetTimeOfCreation(0.); |
---|
| 565 | ZcoordinateOfPreviousCollision=ZcoordinateOfCurrentInteraction; |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | G4ThreeVector thePosition(projectile->GetPosition().x(), |
---|
| 569 | projectile->GetPosition().y(), |
---|
| 570 | ZcoordinateOfCurrentInteraction); |
---|
| 571 | projectile->SetPosition(thePosition); |
---|
| 572 | |
---|
| 573 | G4double TimeOfPreviousCollision=projectile->GetTimeOfCreation(); |
---|
| 574 | G4double TimeOfCurrentCollision=TimeOfPreviousCollision+ |
---|
| 575 | (ZcoordinateOfCurrentInteraction-ZcoordinateOfPreviousCollision)/betta_z; |
---|
| 576 | |
---|
| 577 | projectile->SetTimeOfCreation(TimeOfCurrentCollision); |
---|
| 578 | target->SetTimeOfCreation(TimeOfCurrentCollision); |
---|
| 579 | |
---|
[819] | 580 | projectile->Set4Momentum(Pprojectile); |
---|
[962] | 581 | target->Set4Momentum(Ptarget); |
---|
[819] | 582 | |
---|
[962] | 583 | projectile->IncrementCollisionCount(1); |
---|
| 584 | target->IncrementCollisionCount(1); |
---|
| 585 | |
---|
| 586 | // |
---|
| 587 | //G4cout<<"Out of Excitation --------------------"<<G4endl; |
---|
| 588 | //G4int Uzhiinp; G4cin>>Uzhiinp; // Vova |
---|
| 589 | |
---|
[819] | 590 | return true; |
---|
| 591 | } |
---|
| 592 | |
---|
[962] | 593 | // --------------------------------------------------------------------- |
---|
[819] | 594 | G4ExcitedString * G4DiffractiveExcitation:: |
---|
| 595 | String(G4VSplitableHadron * hadron, G4bool isProjectile) const |
---|
| 596 | { |
---|
[962] | 597 | |
---|
| 598 | //G4cout<<"G4DiffractiveExcitation::String isProj"<<isProjectile<<G4endl; |
---|
| 599 | |
---|
[819] | 600 | hadron->SplitUp(); |
---|
| 601 | G4Parton *start= hadron->GetNextParton(); |
---|
[962] | 602 | if ( start==NULL) |
---|
[819] | 603 | { G4cout << " G4FTFModel::String() Error:No start parton found"<< G4endl; |
---|
| 604 | return NULL; |
---|
| 605 | } |
---|
| 606 | G4Parton *end = hadron->GetNextParton(); |
---|
[962] | 607 | if ( end==NULL) |
---|
[819] | 608 | { G4cout << " G4FTFModel::String() Error:No end parton found"<< G4endl; |
---|
| 609 | return NULL; |
---|
| 610 | } |
---|
[962] | 611 | |
---|
[819] | 612 | G4ExcitedString * string; |
---|
[962] | 613 | if ( isProjectile ) |
---|
[819] | 614 | { |
---|
| 615 | string= new G4ExcitedString(end,start, +1); |
---|
| 616 | } else { |
---|
| 617 | string= new G4ExcitedString(start,end, -1); |
---|
| 618 | } |
---|
[962] | 619 | // Uzhi |
---|
| 620 | //G4cout<<"G4ExcitedString * G4DiffractiveExcitation::String"<<G4endl; |
---|
| 621 | //G4cout<<hadron->GetTimeOfCreation()<<" "<<hadron->GetPosition()/fermi<<G4endl; |
---|
| 622 | |
---|
| 623 | string->SetTimeOfCreation(hadron->GetTimeOfCreation()); |
---|
[819] | 624 | string->SetPosition(hadron->GetPosition()); |
---|
| 625 | |
---|
| 626 | // momenta of string ends |
---|
[962] | 627 | // |
---|
| 628 | G4double Momentum=hadron->Get4Momentum().vect().mag(); |
---|
| 629 | G4double Plus=hadron->Get4Momentum().e() + Momentum; |
---|
| 630 | G4double Minus=hadron->Get4Momentum().e() - Momentum; |
---|
| 631 | |
---|
| 632 | G4ThreeVector tmp; |
---|
| 633 | if(Momentum > 0.) |
---|
| 634 | { |
---|
| 635 | tmp.set(hadron->Get4Momentum().px(), |
---|
| 636 | hadron->Get4Momentum().py(), |
---|
| 637 | hadron->Get4Momentum().pz()); |
---|
| 638 | tmp/=Momentum; |
---|
| 639 | } |
---|
| 640 | else |
---|
| 641 | { |
---|
| 642 | tmp.set(0.,0.,1.); |
---|
| 643 | }; |
---|
| 644 | |
---|
| 645 | G4LorentzVector Pstart(tmp,0.); |
---|
| 646 | G4LorentzVector Pend(tmp,0.); |
---|
| 647 | |
---|
| 648 | if(isProjectile) |
---|
| 649 | { |
---|
| 650 | Pstart*=(-1.)*Minus/2.; |
---|
| 651 | Pend *=(+1.)*Plus /2.; |
---|
| 652 | } |
---|
| 653 | else |
---|
| 654 | { |
---|
| 655 | Pstart*=(+1.)*Plus/2.; |
---|
| 656 | Pend *=(-1.)*Minus/2.; |
---|
| 657 | }; |
---|
| 658 | |
---|
| 659 | Momentum=-Pstart.mag(); |
---|
| 660 | Pstart.setT(Momentum); // It is assumed that quark has m=0. |
---|
| 661 | |
---|
| 662 | Momentum=-Pend.mag(); |
---|
| 663 | Pend.setT(Momentum); // It is assumed that di-quark has m=0. |
---|
| 664 | // |
---|
| 665 | /* Uzhi |
---|
[819] | 666 | G4double ptSquared= hadron->Get4Momentum().perp2(); |
---|
| 667 | G4double transverseMassSquared= hadron->Get4Momentum().plus() |
---|
| 668 | * hadron->Get4Momentum().minus(); |
---|
| 669 | |
---|
| 670 | |
---|
| 671 | G4double maxAvailMomentumSquared= |
---|
| 672 | sqr( std::sqrt(transverseMassSquared) - std::sqrt(ptSquared) ); |
---|
| 673 | |
---|
[962] | 674 | G4double widthOfPtSquare = 0.25*GeV*GeV; // Uzhi 11.07 <Pt^2>=0.25 ?????????????????? |
---|
[819] | 675 | G4ThreeVector pt=GaussianPt(widthOfPtSquare,maxAvailMomentumSquared); |
---|
| 676 | |
---|
| 677 | G4LorentzVector Pstart(G4LorentzVector(pt,0.)); |
---|
| 678 | G4LorentzVector Pend; |
---|
| 679 | Pend.setPx(hadron->Get4Momentum().px() - pt.x()); |
---|
| 680 | Pend.setPy(hadron->Get4Momentum().py() - pt.y()); |
---|
| 681 | |
---|
| 682 | G4double tm1=hadron->Get4Momentum().minus() + |
---|
| 683 | ( Pend.perp2()-Pstart.perp2() ) / hadron->Get4Momentum().plus(); |
---|
| 684 | |
---|
| 685 | G4double tm2= std::sqrt( std::max(0., sqr(tm1) - |
---|
| 686 | 4. * Pend.perp2() * hadron->Get4Momentum().minus() |
---|
| 687 | / hadron->Get4Momentum().plus() )); |
---|
| 688 | |
---|
| 689 | G4int Sign= isProjectile ? -1 : 1; |
---|
[962] | 690 | |
---|
[819] | 691 | G4double endMinus = 0.5 * (tm1 + Sign*tm2); |
---|
| 692 | G4double startMinus= hadron->Get4Momentum().minus() - endMinus; |
---|
| 693 | |
---|
| 694 | G4double startPlus= Pstart.perp2() / startMinus; |
---|
| 695 | G4double endPlus = hadron->Get4Momentum().plus() - startPlus; |
---|
| 696 | |
---|
| 697 | Pstart.setPz(0.5*(startPlus - startMinus)); |
---|
| 698 | Pstart.setE(0.5*(startPlus + startMinus)); |
---|
| 699 | |
---|
| 700 | Pend.setPz(0.5*(endPlus - endMinus)); |
---|
| 701 | Pend.setE(0.5*(endPlus + endMinus)); |
---|
[962] | 702 | */ // Uzhi |
---|
[819] | 703 | start->Set4Momentum(Pstart); |
---|
| 704 | end->Set4Momentum(Pend); |
---|
[962] | 705 | /* |
---|
| 706 | G4cout<<"G4DiffractiveExcitation::String hadro"<<hadron->Get4Momentum()<<" "<<hadron->Get4Momentum().mag2()<<G4endl; |
---|
| 707 | |
---|
| 708 | G4cout<<"G4DiffractiveExcitation::String start"<<start->Get4Momentum()<<" "<<start->GetPDGcode()<<G4endl; |
---|
| 709 | |
---|
| 710 | G4cout<<"G4DiffractiveExcitation::String end "<< end->Get4Momentum()<<" "<< end->GetPDGcode()<<G4endl; |
---|
| 711 | G4int Uzhi; G4cin>>Uzhi; |
---|
| 712 | */ |
---|
[819] | 713 | #ifdef G4_FTFDEBUG |
---|
[962] | 714 | G4cout << " generated string flavors " |
---|
| 715 | << start->GetPDGcode() << " / " |
---|
| 716 | << end->GetPDGcode() << G4endl; |
---|
| 717 | G4cout << " generated string momenta: quark " |
---|
| 718 | << start->Get4Momentum() << "mass : " |
---|
| 719 | <<start->Get4Momentum().mag() << G4endl; |
---|
| 720 | G4cout << " generated string momenta: Diquark " |
---|
| 721 | << end ->Get4Momentum() |
---|
| 722 | << "mass : " <<end->Get4Momentum().mag()<< G4endl; |
---|
[819] | 723 | G4cout << " sum of ends " << Pstart+Pend << G4endl; |
---|
| 724 | G4cout << " Original " << hadron->Get4Momentum() << G4endl; |
---|
| 725 | #endif |
---|
[962] | 726 | |
---|
| 727 | return string; |
---|
[819] | 728 | } |
---|
| 729 | |
---|
| 730 | |
---|
| 731 | // --------- private methods ---------------------- |
---|
| 732 | |
---|
[962] | 733 | // --------------------------------------------------------------------- |
---|
[819] | 734 | G4double G4DiffractiveExcitation::ChooseP(G4double Pmin, G4double Pmax) const // Uzhi |
---|
| 735 | { |
---|
| 736 | // choose an x between Xmin and Xmax with P(x) ~ 1/x |
---|
| 737 | // to be improved... |
---|
| 738 | |
---|
| 739 | G4double range=Pmax-Pmin; // Uzhi |
---|
[962] | 740 | |
---|
| 741 | if ( Pmin <= 0. || range <=0. ) |
---|
[819] | 742 | { |
---|
| 743 | G4cout << " Pmin, range : " << Pmin << " , " << range << G4endl; |
---|
| 744 | throw G4HadronicException(__FILE__, __LINE__, "G4DiffractiveExcitation::ChooseP : Invalid arguments "); |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | G4double P; |
---|
| 748 | /* // Uzhi |
---|
| 749 | do { |
---|
| 750 | x=Xmin + G4UniformRand() * range; |
---|
| 751 | } while ( Xmin/x < G4UniformRand() ); |
---|
| 752 | */ // Uzhi |
---|
| 753 | |
---|
| 754 | P=Pmin * std::pow(Pmax/Pmin,G4UniformRand()); // Uzhi |
---|
| 755 | |
---|
| 756 | //debug-hpw cout << "DiffractiveX "<<x<<G4endl; |
---|
| 757 | return P; |
---|
| 758 | } |
---|
| 759 | |
---|
[962] | 760 | // --------------------------------------------------------------------- |
---|
| 761 | G4ThreeVector G4DiffractiveExcitation::GaussianPt(G4double AveragePt2, |
---|
| 762 | G4double maxPtSquare) const // Uzhi |
---|
[819] | 763 | { // @@ this method is used in FTFModel as well. Should go somewhere common! |
---|
[962] | 764 | |
---|
[819] | 765 | G4double Pt2; |
---|
| 766 | /* // Uzhi |
---|
| 767 | do { |
---|
| 768 | pt2=widthSquare * std::log( G4UniformRand() ); |
---|
| 769 | } while ( pt2 > maxPtSquare); |
---|
| 770 | */ // Uzhi |
---|
| 771 | |
---|
[962] | 772 | Pt2 = -AveragePt2 * std::log(1. + G4UniformRand() * |
---|
| 773 | (std::exp(-maxPtSquare/AveragePt2)-1.));// Uzhi |
---|
| 774 | |
---|
[819] | 775 | G4double Pt=std::sqrt(Pt2); |
---|
| 776 | |
---|
| 777 | G4double phi=G4UniformRand() * twopi; |
---|
[962] | 778 | |
---|
| 779 | return G4ThreeVector (Pt*std::cos(phi), Pt*std::sin(phi), 0.); |
---|
[819] | 780 | } |
---|
| 781 | |
---|
[962] | 782 | // --------------------------------------------------------------------- |
---|
[819] | 783 | G4DiffractiveExcitation::G4DiffractiveExcitation(const G4DiffractiveExcitation &) |
---|
| 784 | { |
---|
| 785 | throw G4HadronicException(__FILE__, __LINE__, "G4DiffractiveExcitation copy contructor not meant to be called"); |
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| 786 | } |
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| 787 | |
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| 788 | |
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| 789 | G4DiffractiveExcitation::~G4DiffractiveExcitation() |
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| 790 | { |
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| 791 | } |
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| 792 | |
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| 793 | |
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| 794 | const G4DiffractiveExcitation & G4DiffractiveExcitation::operator=(const G4DiffractiveExcitation &) |
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| 795 | { |
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| 796 | throw G4HadronicException(__FILE__, __LINE__, "G4DiffractiveExcitation = operator meant to be called"); |
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| 797 | return *this; |
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| 798 | } |
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| 799 | |
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| 800 | |
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| 801 | int G4DiffractiveExcitation::operator==(const G4DiffractiveExcitation &) const |
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| 802 | { |
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| 803 | throw G4HadronicException(__FILE__, __LINE__, "G4DiffractiveExcitation == operator meant to be called"); |
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| 804 | return false; |
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| 805 | } |
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| 806 | |
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| 807 | int G4DiffractiveExcitation::operator!=(const G4DiffractiveExcitation &) const |
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| 808 | { |
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| 809 | throw G4HadronicException(__FILE__, __LINE__, "G4DiffractiveExcitation != operator meant to be called"); |
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| 810 | return true; |
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| 811 | } |
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