Gabriele Cosmo
119 lines
4.9 KiB
C++
119 lines
4.9 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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/** \file G4INCLEventInfo.cc
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* \brief Simple container for output of event results.
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*
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* Contains the results of an INCL cascade.
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*
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* \date 21 January 2011
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* \author Davide Mancusi
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*/
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#include "G4INCLEventInfo.hh"
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#include "G4INCLGlobals.hh"
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#include "G4INCLParticleTable.hh"
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#include <cmath>
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namespace G4INCL {
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G4ThreadLocal Int_t EventInfo::eventNumber = 0;
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#ifdef INCL_INVERSE_KINEMATICS
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void EventInfo::fillInverseKinematics(const Double_t gamma) {
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const Double_t beta = std::sqrt(1.-1./(gamma*gamma));
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for(Int_t i=0; i<nParticles; ++i) {
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// determine the particle mass from the kinetic energy and the momentum;
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// this ensures consistency with the masses uses by the models
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Double_t mass;
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if(EKin[i]>0.) {
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mass = std::max(
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0.5 * (px[i]*px[i]+py[i]*py[i]+pz[i]*pz[i]-EKin[i]*EKin[i]) / EKin[i],
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0.0);
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} else {
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INCL_WARN("Particle with null kinetic energy in fillInverseKinematics, cannot determine its mass:\n"
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<< " A=" << A[i] << ", Z=" << Z[i] << '\n'
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<< " EKin=" << EKin[i] << ", px=" << px[i] << ", py=" << py[i] << ", pz=" << pz[i] << '\n'
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<< " Falling back to the mass from the INCL ParticleTable" << '\n');
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mass = ParticleTable::getRealMass(A[i], Z[i]);
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}
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const Double_t ETot = EKin[i] + mass;
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const Double_t ETotPrime = gamma*(ETot - beta*pz[i]);
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EKinPrime[i] = ETotPrime - mass;
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pzPrime[i] = -gamma*(pz[i] - beta*ETot);
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const Double_t pPrime = std::sqrt(px[i]*px[i] + py[i]*py[i] + pzPrime[i]*pzPrime[i]);
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const Double_t cosThetaPrime = (pPrime>0.) ? (pzPrime[i]/pPrime) : 1.;
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if(cosThetaPrime>=1.)
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thetaPrime[i] = 0.;
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else if(cosThetaPrime<=-1.)
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thetaPrime[i] = 180.;
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else
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thetaPrime[i] = Math::toDegrees(Math::arcCos(cosThetaPrime));
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}
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}
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#endif // INCL_INVERSE_KINEMATICS
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void EventInfo::remnantToParticle(const G4int remnantIndex) {
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A[nParticles] = ARem[remnantIndex];
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Z[nParticles] = ZRem[remnantIndex];
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emissionTime[nParticles] = stoppingTime;
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px[nParticles] = pxRem[remnantIndex];
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py[nParticles] = pyRem[remnantIndex];
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pz[nParticles] = pzRem[remnantIndex];
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const G4double plab = std::sqrt(pxRem[remnantIndex]*pxRem[remnantIndex]
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+pyRem[remnantIndex]*pyRem[remnantIndex]
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+pzRem[remnantIndex]*pzRem[remnantIndex]);
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G4double pznorm = pzRem[remnantIndex]/plab;
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if(pznorm>1.)
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pznorm = 1.;
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else if(pznorm<-1.)
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pznorm = -1.;
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theta[nParticles] = Math::toDegrees(Math::arcCos(pznorm));
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phi[nParticles] = Math::toDegrees(std::atan2(pyRem[remnantIndex],pxRem[remnantIndex]));
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EKin[nParticles] = EKinRem[remnantIndex];
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origin[nParticles] = -1; // Origin: cascade
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history.push_back(""); // history
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nParticles++;
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// assert(history.size()==(unsigned int)nParticles);
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}
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}
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