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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 //  Author: Dennis Wright (SLAC)
0027 //  Date:   5 August 2011
0028 //
0029 
0030 #ifndef G4BetaDecayCorrections_h
0031 #define G4BetaDecayCorrections_h 1
0032 
0033 #include "G4BetaDecayType.hh"
0034 
0035 
0036 class G4BetaDecayCorrections
0037 {
0038   public:
0039     G4BetaDecayCorrections(const G4int Z, const G4int A);
0040     
0041     ~G4BetaDecayCorrections() {};
0042 
0043     G4double FermiFunction(const G4double& W);
0044 
0045     G4double ShapeFactor(const G4BetaDecayType&,
0046                          const G4double& p_e, const G4double& e_nu);
0047 
0048   private:
0049     G4double ModSquared(const G4double& x, G4double y);
0050     G4double Gamma(const G4double& arg);
0051 
0052     const G4int Z;
0053     const G4int A;
0054     G4double alphaZ;
0055     G4double Rnuc;    // Nuclear radius  
0056     G4double V0;      // Electron screening potential  
0057     G4double gamma0;
0058     G4double imMax;   // largest allowed im argument of ModSquared
0059 
0060     G4double gc[6];   // Real gamma function polynomial coefficients 
0061 };
0062 
0063 #endif
0064