| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | #ifndef G4ASCCrossSection_h
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| 27 | #define G4ASCCrossSection_h
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| 28 |
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| 29 | #include "globals.hh"
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| 30 | #include "G4VAnnihilationCrossSection.hh"
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| 31 |
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| 32 | class G4ASCCrossSection : public G4VAnnihilationCrossSection
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| 33 | {
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| 34 | public:
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| 35 | G4ASCCrossSection(G4int, G4int, G4double, G4double, G4double, G4double);
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| 36 | G4bool InCharge(G4int aCode, G4int bCode);
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| 37 | G4double GetXsec(G4double s);
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| 38 | private:
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| 39 |
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| 40 | G4int theCode1;
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| 41 | G4int theCode2;
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| 42 | G4double theX;
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| 43 | G4double theY;
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| 44 | G4double theEta;
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| 45 | G4double theEps;
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| 46 | };
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| 47 |
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| 48 |
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| 49 | inline G4bool G4ASCCrossSection::
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| 50 | InCharge(G4int aCode, G4int bCode)
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| 51 | {
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| 52 | G4bool result;
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| 53 | result = (aCode==theCode1&&bCode==theCode2)||(aCode==theCode2&&bCode==theCode1);
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| 54 | return result;
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| 55 | }
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| 56 |
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| 57 | inline G4double G4ASCCrossSection::
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| 58 | GetXsec(G4double s)
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| 59 | {
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| 60 | G4double result = theX*std::pow(s, theEps) + theY*std::pow(s, -theEta);
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| 61 | return result;
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| 62 | }
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| 63 |
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| 64 | #endif
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