Gabriele Cosmo
111 lines
4.0 KiB
C++
111 lines
4.0 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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// G4KL3DecayChannel
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// Author: H.Kurashige, 30 May 1997
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// --------------------------------------------------------------------
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#ifndef G4KL3DecayChannel_hh
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#define G4KL3DecayChannel_hh 1
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#include "G4VDecayChannel.hh"
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#include "G4ios.hh"
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#include "globals.hh"
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class G4KL3DecayChannel : public G4VDecayChannel
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{
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public:
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// Constructor & destructor
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G4KL3DecayChannel(const G4String& theParentName, G4double theBR, const G4String& thePionName,
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const G4String& theLeptonName, const G4String& theNutrinoName);
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~G4KL3DecayChannel() override = default;
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G4DecayProducts* DecayIt(G4double) override;
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inline void SetDalitzParameter(G4double aLambda, G4double aXi);
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inline G4double GetDalitzParameterLambda() const;
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inline G4double GetDalitzParameterXi() const;
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protected:
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// Copy constructor and assignment operator
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G4KL3DecayChannel(const G4KL3DecayChannel&) = default;
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G4KL3DecayChannel& operator=(const G4KL3DecayChannel&);
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// Assignment of daughter particles for arrays of daughters[] etc.
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enum
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{
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idPi = 0,
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idLepton = 1,
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idNutrino = 2
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};
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// Calculate momentum of daughters
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void PhaseSpace(G4double Mparent, const G4double* Mdaughter, G4double* Edaughter,
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G4double* Pdaughter);
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// Dalitz Plot Density
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// KL3 decay Dalitz Plot Density, 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 parentmass, G4double Epi, G4double El, G4double Enu,
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G4double massPi, G4double massL, G4double massNu);
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private:
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G4KL3DecayChannel() = default;
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private:
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// Used in DalitzDensity() coefficients
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G4double pLambda = 0.0;
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G4double pXi0 = 0.0;
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};
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// ------------------------
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// Inline methods
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// ------------------------
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inline 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 G4double G4KL3DecayChannel::GetDalitzParameterLambda() const
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{
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return pLambda;
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}
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inline 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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