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 // $Id$ 00027 // 00028 // J. M. Quesada (August 2008). 00029 // Based on previous work by V. Lara 00030 // 00031 // Modified: 00032 // 20.08.2010 V.Ivanchenko added int Z and A and cleanup; added 00033 // G4ParticleDefinition to constructor 00034 00035 00036 #ifndef G4PreCompoundNucleon_h 00037 #define G4PreCompoundNucleon_h 1 00038 00039 #include "G4PreCompoundFragment.hh" 00040 00041 class G4PreCompoundNucleon : public G4PreCompoundFragment 00042 { 00043 public: 00044 00045 G4PreCompoundNucleon(const G4ParticleDefinition*, 00046 G4VCoulombBarrier * aCoulombBarrier); 00047 00048 virtual ~G4PreCompoundNucleon(); 00049 00050 protected: 00051 00052 virtual G4double 00053 ProbabilityDistributionFunction(G4double eKin, 00054 const G4Fragment& aFragment); 00055 00056 virtual G4double CrossSection(G4double ekin) = 0; 00057 00058 virtual G4double 00059 GetRj(G4int NumberParticles, G4int NumberCharged) = 0; 00060 00061 virtual G4double GetAlpha() = 0; 00062 00063 virtual G4double GetBeta() = 0; 00064 00065 inline G4double GetOpt0(G4double ekin); 00066 00067 private: 00068 00069 // default constructor 00070 G4PreCompoundNucleon(); 00071 // operators 00072 G4PreCompoundNucleon(const G4PreCompoundNucleon &right); 00073 const G4PreCompoundNucleon& 00074 operator= (const G4PreCompoundNucleon &right); 00075 G4int operator==(const G4PreCompoundNucleon &right) const; 00076 G4int operator!=(const G4PreCompoundNucleon &right) const; 00077 00078 G4double fact; 00079 }; 00080 00081 // *********************** OPT=0 : Dostrovski's cross section *************** 00082 inline G4double G4PreCompoundNucleon::GetOpt0(G4double K) 00083 { 00084 G4double r0 = theParameters->Getr0()*ResidualA13(); 00085 // cross section is now given in mb (r0 is in mm) for the sake of consistency 00086 //with the rest of the options 00087 return 1.e+25*CLHEP::pi*r0*r0*ResidualA13()*GetAlpha()*(1.+GetBeta()/K); 00088 } 00089 00090 #endif