Gabriele Cosmo
94 lines
3.6 KiB
C++
94 lines
3.6 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// INCL++ intra-nuclear cascade model
|
|
// Alain Boudard, CEA-Saclay, France
|
|
// Joseph Cugnon, University of Liege, Belgium
|
|
// Jean-Christophe David, CEA-Saclay, France
|
|
// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
|
|
// Sylvie Leray, CEA-Saclay, France
|
|
// Davide Mancusi, CEA-Saclay, France
|
|
//
|
|
#define INCLXX_IN_GEANT4_MODE 1
|
|
|
|
#include "globals.hh"
|
|
|
|
#include "G4INCLNNToNNEtaChannel.hh"
|
|
#include "G4INCLKinematicsUtils.hh"
|
|
#include "G4INCLBinaryCollisionAvatar.hh"
|
|
#include "G4INCLRandom.hh"
|
|
#include "G4INCLGlobals.hh"
|
|
#include "G4INCLLogger.hh"
|
|
#include <algorithm>
|
|
#include "G4INCLPhaseSpaceGenerator.hh"
|
|
|
|
namespace G4INCL {
|
|
|
|
const G4double NNToNNEtaChannel::angularSlope = 6.; // why 6.? same as in multipions...
|
|
|
|
NNToNNEtaChannel::NNToNNEtaChannel(Particle *p1, Particle *p2)
|
|
: iso1(0),
|
|
iso2(0),
|
|
particle1(p1),
|
|
particle2(p2)
|
|
{}
|
|
|
|
NNToNNEtaChannel::~NNToNNEtaChannel(){
|
|
|
|
}
|
|
|
|
void NNToNNEtaChannel::fillFinalState(FinalState *fs) {
|
|
|
|
iso1=ParticleTable::getIsospin(particle1->getType());
|
|
iso2=ParticleTable::getIsospin(particle2->getType());
|
|
|
|
ParticleList list;
|
|
list.push_back(particle1);
|
|
list.push_back(particle2);
|
|
fs->addModifiedParticle(particle1);
|
|
fs->addModifiedParticle(particle2);
|
|
|
|
const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
|
|
|
|
const ParticleType tn1=ParticleTable::getNucleonType(iso1);
|
|
particle1->setType(tn1);
|
|
const ParticleType tn2=ParticleTable::getNucleonType(iso2);
|
|
particle2->setType(tn2);
|
|
const ThreeVector &rcolnucleon1 = particle1->getPosition();
|
|
const ThreeVector &rcolnucleon2 = particle2->getPosition();
|
|
const ThreeVector rcol = (rcolnucleon1+rcolnucleon2)*0.5;
|
|
const ThreeVector zero;
|
|
ParticleType etaType=Eta;
|
|
Particle *etaCreated = new Particle(etaType,zero,rcol);
|
|
list.push_back(etaCreated);
|
|
fs->addCreatedParticle(etaCreated);
|
|
|
|
G4int biasIndex = ((Random::shoot()<0.5) ? 0 : 1);
|
|
PhaseSpaceGenerator::generateBiased(sqrtS, list, biasIndex, angularSlope);
|
|
|
|
}
|
|
|
|
}
|