Gabriele Cosmo
122 lines
3.9 KiB
C++
122 lines
3.9 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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//
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// $Id: G4KL3DecayChannel.hh,v 1.4 2001/07/11 10:01:56 gunter Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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//
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//
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// History: first implementation, based on object model of
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// 7 June 1997 H.Kurashige
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// ------------------------------------------------------------
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#ifndef G4KL3DecayChannel_h
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#define G4KL3DecayChannel_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include "G4VDecayChannel.hh"
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class G4KL3DecayChannel :public G4VDecayChannel
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{
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public: // With Description
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//Constructors
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G4KL3DecayChannel(const G4String& theParentName,
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G4double theBR,
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const G4String& thePionName,
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const G4String& theLeptonName,
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const G4String& theNutrinoName);
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// Destructor
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virtual ~G4KL3DecayChannel();
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public: // With Description
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virtual G4DecayProducts *DecayIt(G4double);
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protected:
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// assignment of daughter particles for arrays of daughters[] etc.
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enum{idPi=0, idLepton=1, idNutrino=2};
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G4double daughterM[3];
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protected:
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// calcurate momentum of daughters
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// results will be stored in Edaughter[3] and Pdaughter[3]
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void PhaseSpace(G4double Mparent,
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const G4double* Mdaughter,
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G4double* Edaughter,
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G4double* Pdaughter);
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protected:
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// Dalitz Plot Density
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// KL3 decay Dalitz Plot Density
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// see Chounet et al Phys. Rep. 4, 201
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// arguments
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// Epi: kinetic enregy of pion
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// El: kinetic enregy of lepton (e or mu)
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// Enu: kinetic energy of nutrino
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// constants
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// pLambda : linear energy dependence of f+
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// pXi0 : = f+(0)/f-
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// pNorm : normalization factor
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G4double DalitzDensity(G4double Epi, G4double El, G4double Enu);
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private:
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// constants used in DalitzDensity()
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// Kon mass
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G4double massK;
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// coefficients
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G4double pLambda;
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G4double pXi0;
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G4double pNormalization;
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public:
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void SetDalitzParameter(G4double aLambda, G4double aXi );
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G4double GetDalitzParameterLambda() const;
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G4double GetDalitzParameterXi() const;
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};
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inline
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void G4KL3DecayChannel::SetDalitzParameter(G4double aLambda, G4double aXi)
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{
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pLambda = aLambda;
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pXi0 = aXi;
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}
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inline
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G4double G4KL3DecayChannel::GetDalitzParameterLambda() const
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{
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return pLambda;
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}
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inline
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G4double G4KL3DecayChannel::GetDalitzParameterXi() const
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{
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return pXi0;
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}
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#endif
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