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1 // 2 // ******************************************************************** 3 // * License and Disclaimer * 4 // * * 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. * 10 // * * 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitation of liability. * 17 // * * 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************************************** 25 // 26 // INCL++ intra-nuclear cascade model 27 // Alain Boudard, CEA-Saclay, France 28 // Joseph Cugnon, University of Liege, Belgium 29 // Jean-Christophe David, CEA-Saclay, France 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland 31 // Sylvie Leray, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France 33 // 34 #define INCLXX_IN_GEANT4_MODE 1 35 36 #include "globals.hh" 37 38 #include "G4INCLNSToNLChannel.hh" 39 #include "G4INCLKinematicsUtils.hh" 40 #include "G4INCLBinaryCollisionAvatar.hh" 41 #include "G4INCLRandom.hh" 42 #include "G4INCLGlobals.hh" 43 #include "G4INCLLogger.hh" 44 #include <algorithm> 45 #include "G4INCLPhaseSpaceGenerator.hh" 46 47 namespace G4INCL { 48 49 NSToNLChannel::NSToNLChannel(Particle *p1, Particle *p2) 50 : particle1(p1), particle2(p2) 51 {} 52 53 NSToNLChannel::~NSToNLChannel(){} 54 55 void NSToNLChannel::fillFinalState(FinalState *fs) { 56 57 Particle *nucleon; 58 Particle *sigma; 59 60 if(particle1->isNucleon()){ 61 nucleon = particle1; 62 sigma = particle2; 63 } 64 else{ 65 nucleon = particle2; 66 sigma = particle1; 67 } 68 69 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, sigma); 70 71 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(sigma->getType()); 72 // assert(iso == -1 || iso == 1); 73 74 nucleon->setType(ParticleTable::getNucleonType(iso)); 75 sigma->setType(Lambda); 76 77 G4double mn=nucleon->getMass(); 78 G4double my=sigma->getMass(); 79 80 G4double ey=(sqrtS*sqrtS+my*my-mn*mn)/(2*sqrtS); 81 G4double en=std::sqrt(ey*ey-my*my+mn*mn); 82 nucleon->setEnergy(en); 83 sigma->setEnergy(ey); 84 G4double py=std::sqrt(ey*ey-my*my); 85 86 ThreeVector mom_hyperon = Random::normVector(py); 87 88 sigma->setMomentum(mom_hyperon); 89 nucleon->setMomentum(-mom_hyperon); 90 91 fs->addModifiedParticle(nucleon); 92 fs->addModifiedParticle(sigma); 93 94 } 95 } 96