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 // 00027 // $Id$ 00028 // 00029 // 00030 // ---------------------------------------------------------------------- 00031 // GEANT 4 class implementation file 00032 // 00033 // History: first implementation, based on object model of 00034 // 4th April 1996, G.Cosmo 00035 // H.Kurashige 7 July 1996 00036 // ********************************************************************** 00037 // New impelemenataion as an utility class M.Asai, 26 July 2004 00038 // ---------------------------------------------------------------- 00039 00040 #include "G4AntiProton.hh" 00041 #include "G4PhysicalConstants.hh" 00042 #include "G4SystemOfUnits.hh" 00043 #include "G4ParticleTable.hh" 00044 00045 // ###################################################################### 00046 // ### ANTIPROTON ### 00047 // ###################################################################### 00048 00049 G4AntiProton* G4AntiProton::theInstance = 0; 00050 00051 G4AntiProton* G4AntiProton::Definition() 00052 { 00053 if (theInstance !=0) return theInstance; 00054 const G4String name = "anti_proton"; 00055 // search in particle table] 00056 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable(); 00057 G4ParticleDefinition* anInstance = pTable->FindParticle(name); 00058 if (anInstance ==0) 00059 { 00060 // create particle 00061 // 00062 // Arguments for constructor are as follows 00063 // name mass width charge 00064 // 2*spin parity C-conjugation 00065 // 2*Isospin 2*Isospin3 G-parity 00066 // type lepton number baryon number PDG encoding 00067 // stable lifetime decay table 00068 // shortlived subType anti_encoding 00069 // use constants in CLHEP 00070 // static const double proton_mass_c2 = 938.27231 * MeV; 00071 00072 anInstance = new G4ParticleDefinition( 00073 name, proton_mass_c2, 0.0*MeV, -1.0*eplus, 00074 1, +1, 0, 00075 1, -1, 0, 00076 "baryon", 0, -1, -2212, 00077 true, -1.0, NULL, 00078 false, "nucleon" 00079 ); 00080 // Magnetic Moment 00081 G4double mN = eplus*hbar_Planck/2./(proton_mass_c2 /c_squared); 00082 anInstance->SetPDGMagneticMoment( -2.792847351 * mN); 00083 } 00084 theInstance = reinterpret_cast<G4AntiProton*>(anInstance); 00085 return theInstance; 00086 } 00087 00088 G4AntiProton* G4AntiProton::AntiProtonDefinition() 00089 { 00090 return Definition(); 00091 } 00092 00093 G4AntiProton* G4AntiProton::AntiProton() 00094 { 00095 return Definition(); 00096 } 00097