include/Geant4/G4PolarizedGammaConversionXS.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 // Geant4 Class file
0027 //
0028 // File name:     G4PolarizedGammaConversionXS
0029 //
0030 // Author:        Karim Laihem
0031
0032 #ifndef G4PolarizedGammaConversionXS_h
0033 #define G4PolarizedGammaConversionXS_h 1
0034
0035 #include "G4StokesVector.hh"
0036 #include "G4VPolarizedXS.hh"
0037
0038 class G4PolarizedGammaConversionXS : public G4VPolarizedXS
0039 {
0040  public:
0041   G4PolarizedGammaConversionXS();
0042   ~G4PolarizedGammaConversionXS() override;
0043
0044   void Initialize(G4double eps, G4double X, G4double phi,
0045                   const G4StokesVector& p0, const G4StokesVector& p1,
0046                   G4int flag = 0) override;
0047
0048   G4double XSection(const G4StokesVector& pol2,
0049                     const G4StokesVector& pol3) override;
0050
0051   // return expected mean polarisation
0052   G4StokesVector GetPol2() override;  // electron/positron
0053   G4StokesVector GetPol3() override;  // photon
0054
0055   G4PolarizedGammaConversionXS& operator                            =(
0056     const G4PolarizedGammaConversionXS& right) = delete;
0057   G4PolarizedGammaConversionXS(const G4PolarizedGammaConversionXS&) = delete;
0058
0059  private:
0060   static G4double SCRN[2][19];  // screening function lookup table
0061
0062   G4StokesVector fFinalElectronPolarization;
0063   G4StokesVector fFinalPositronPolarization;
0064 };
0065
0066 #endif