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 #ifndef G4ASCCrossSection_h 00027 #define G4ASCCrossSection_h 00028 00029 #include "globals.hh" 00030 #include "G4VAnnihilationCrossSection.hh" 00031 00032 class G4ASCCrossSection : public G4VAnnihilationCrossSection 00033 { 00034 public: 00035 G4ASCCrossSection(G4int, G4int, G4double, G4double, G4double, G4double); 00036 G4bool InCharge(G4int aCode, G4int bCode); 00037 G4double GetXsec(G4double S); 00038 private: 00039 00040 G4int theCode1; 00041 G4int theCode2; 00042 G4double theX; 00043 G4double theY; 00044 G4double theEta; 00045 G4double theEps; 00046 }; 00047 00048 00049 inline G4bool G4ASCCrossSection:: 00050 InCharge(G4int aCode, G4int bCode) 00051 { 00052 G4bool result; 00053 result = (aCode==theCode1&&bCode==theCode2)||(aCode==theCode2&&bCode==theCode1); 00054 return result; 00055 } 00056 00057 inline G4double G4ASCCrossSection:: 00058 GetXsec(G4double S) 00059 { 00060 G4double result = theX*std::pow(S, theEps) + theY*std::pow(S, -theEta); 00061 return result; 00062 } 00063 00064 #endif