Gabriele Cosmo
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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#ifndef G4BetaFermiFunction_h
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#define G4BetaFermiFunction_h 1
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#include "globals.hh"
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class G4BetaFermiFunction
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{
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// class description
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// It is to calculate the Coulomb correction to beta particles
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//
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public: // with description
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G4BetaFermiFunction(G4int const fA, G4int const fZ) :
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A(fA), Z(fZ)
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{};
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// constructor: fA the daughter nucleus mass.
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// fZ the daughter nucleus charge. Negative value for
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// beta+ decays.
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//
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~G4BetaFermiFunction()
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// desctructor
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//
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{};
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G4double GetFF(const G4double E);
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// Returns the BetaFermi factor at energy E.
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// E kinetic energy of the beta particle in unit of Me.
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//
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G4double GetFFN(const G4double E0);
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// Returns the BetaFermi factor normalisation, i.e. the maximum
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// value for beta decay with end-point energy E0.
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// E0 dose not including beta particle rest mass in unit
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// of Me.
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//
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private:
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G4int A;
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G4int Z;
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static const G4double PI;
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private:
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G4double Gamma(G4double X);
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};
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#endif
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