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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 //
0027 //
0028 // Hadronic Process: Nuclear De-excitations
0029 // by V. Lara (Oct 1998) 
0030 //
0031 
0032 #ifndef G4FissionParameters_h
0033 #define G4FissionParameters_h 1
0034 
0035 #include "globals.hh"
0036 #include "G4Exp.hh"
0037 
0038 class G4FissionParameters 
0039 {
0040 public:
0041 
0042   G4FissionParameters();
0043 
0044   ~G4FissionParameters();  
0045 
0046   void DefineParameters(G4int A, G4int Z, G4double ExEnergy, 
0047             G4double FissionBarrier);
0048   
0049 public:
0050 
0051   inline G4int GetA1(void) const { return A1; }
0052   inline G4int GetA2(void) const { return A2; }
0053 
0054   inline G4double GetAs(void) const { return As; }
0055   inline G4double GetSigma1(void) const { return Sigma1; }
0056   inline G4double GetSigma2(void) const { return Sigma2; }
0057   inline G4double GetSigmaS(void) const { return SigmaS; }
0058   inline G4double GetW(void) const { return w; }
0059 
0060 private:
0061 
0062   inline G4double LocalExp(G4double x) const
0063   {
0064     return (std::abs(x) < 8.) ? G4Exp(-0.5*x*x) : 0.0;
0065   }
0066 
0067   G4FissionParameters(const G4FissionParameters &right);
0068   const G4FissionParameters & operator=(const G4FissionParameters &right);
0069   G4bool operator==(const G4FissionParameters &right) const;
0070   G4bool operator!=(const G4FissionParameters &right) const;
0071 
0072   // Mean numbers of the corresponding Gaussians for assymmetric
0073   // fission
0074   G4int A1;
0075   G4int A2;
0076   G4double A3;
0077 
0078   // Mean number for symmetric fission
0079   G4double As;
0080 
0081   // Dispersions of the corresponding Gaussians for assymmetric
0082   // fission
0083   G4double Sigma1;
0084   G4double Sigma2;
0085 
0086   // Dispersion for symmetric fission
0087   G4double SigmaS;
0088 
0089   // Weight which determines the relative contribution of symmetric
0090   // and assymmetric components
0091   G4double w;
0092 };
0093 
0094 
0095 #endif