Gabriele Cosmo
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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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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