96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// INCL++ intra-nuclear cascade model
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// Alain Boudard, CEA-Saclay, France
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// Joseph Cugnon, University of Liege, Belgium
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// Jean-Christophe David, CEA-Saclay, France
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// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
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// Sylvie Leray, CEA-Saclay, France
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// Davide Mancusi, CEA-Saclay, France
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//
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#define INCLXX_IN_GEANT4_MODE 1
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#include "globals.hh"
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#include "G4INCLNSToNLChannel.hh"
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#include "G4INCLKinematicsUtils.hh"
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#include "G4INCLBinaryCollisionAvatar.hh"
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#include "G4INCLRandom.hh"
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#include "G4INCLGlobals.hh"
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#include "G4INCLLogger.hh"
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#include <algorithm>
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#include "G4INCLPhaseSpaceGenerator.hh"
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namespace G4INCL {
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NSToNLChannel::NSToNLChannel(Particle *p1, Particle *p2)
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: particle1(p1), particle2(p2)
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{}
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NSToNLChannel::~NSToNLChannel(){}
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void NSToNLChannel::fillFinalState(FinalState *fs) {
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Particle *nucleon;
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Particle *sigma;
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if(particle1->isNucleon()){
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nucleon = particle1;
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sigma = particle2;
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}
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else{
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nucleon = particle2;
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sigma = particle1;
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}
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const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, sigma);
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const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(sigma->getType());
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// assert(iso == -1 || iso == 1);
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nucleon->setType(ParticleTable::getNucleonType(iso));
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sigma->setType(Lambda);
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G4double mn=nucleon->getMass();
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G4double my=sigma->getMass();
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G4double ey=(sqrtS*sqrtS+my*my-mn*mn)/(2*sqrtS);
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G4double en=std::sqrt(ey*ey-my*my+mn*mn);
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nucleon->setEnergy(en);
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sigma->setEnergy(ey);
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G4double py=std::sqrt(ey*ey-my*my);
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ThreeVector mom_hyperon = Random::normVector(py);
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sigma->setMomentum(mom_hyperon);
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nucleon->setMomentum(-mom_hyperon);
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fs->addModifiedParticle(nucleon);
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fs->addModifiedParticle(sigma);
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}
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}
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