00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // INCL++ intra-nuclear cascade model 00027 // Pekka Kaitaniemi, CEA and Helsinki Institute of Physics 00028 // Davide Mancusi, CEA 00029 // Alain Boudard, CEA 00030 // Sylvie Leray, CEA 00031 // Joseph Cugnon, University of Liege 00032 // 00033 #define INCLXX_IN_GEANT4_MODE 1 00034 00035 #include "globals.hh" 00036 00046 #include "G4INCLNuclearPotentialEnergyIsospin.hh" 00047 #include "G4INCLParticleTable.hh" 00048 #include "G4INCLGlobals.hh" 00049 00050 namespace G4INCL { 00051 00052 namespace NuclearPotential { 00053 00054 const G4double NuclearPotentialEnergyIsospin::alpha= 0.223; 00055 00056 // Constructors 00057 NuclearPotentialEnergyIsospin::NuclearPotentialEnergyIsospin(const G4int A, const G4int Z, const G4bool aPionPotential) 00058 : NuclearPotentialIsospin(A,Z,aPionPotential) 00059 {} 00060 00061 // Destructor 00062 NuclearPotentialEnergyIsospin::~NuclearPotentialEnergyIsospin() {} 00063 00064 G4double NuclearPotentialEnergyIsospin::computePotentialEnergy(const Particle *particle) const { 00065 00066 const G4double v0 = NuclearPotentialIsospin::computePotentialEnergy(particle); 00067 00068 if(particle->isNucleon()) { 00069 const G4double t = particle->getKineticEnergy(); 00070 const G4double tf = getFermiEnergy(particle); 00071 // Constant potential for T<Tf 00072 if(t < tf) 00073 return v0; 00074 00075 // Linear function for T>Tf 00076 const G4double v = v0 - alpha*(t-tf)/(1-alpha); 00077 return (v>0.0) ? v : 0.0; // return 0.0 if v is negative 00078 } else 00079 return v0; 00080 } 00081 00082 } 00083 } 00084