| [824] | 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4KL3DecayChannel.hh,v 1.5 2006/06/29 19:23:33 gunter Exp $
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| [992] | 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $
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| [824] | 29 | //
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| 30 | //
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| 31 | // ------------------------------------------------------------
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| 32 | // GEANT 4 class header file
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| 33 | //
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| 34 | // History: first implementation, based on object model of
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| 35 | // 7 June 1997 H.Kurashige
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| 36 | // ------------------------------------------------------------
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| 37 | #ifndef G4KL3DecayChannel_h
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| 38 | #define G4KL3DecayChannel_h 1
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| 39 |
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| 40 | #include "G4ios.hh"
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| 41 | #include "globals.hh"
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| 42 | #include "G4VDecayChannel.hh"
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| 43 |
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| 44 | class G4KL3DecayChannel :public G4VDecayChannel
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| 45 | {
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| 46 | public: // With Description
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| 47 | //Constructors
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| 48 | G4KL3DecayChannel(const G4String& theParentName,
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| 49 | G4double theBR,
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| 50 | const G4String& thePionName,
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| 51 | const G4String& theLeptonName,
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| 52 | const G4String& theNutrinoName);
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| 53 | // Destructor
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| 54 | virtual ~G4KL3DecayChannel();
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| 55 |
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| 56 | public: // With Description
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| 57 | virtual G4DecayProducts *DecayIt(G4double);
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| 58 |
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| 59 | protected:
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| 60 | // assignment of daughter particles for arrays of daughters[] etc.
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| 61 | enum{idPi=0, idLepton=1, idNutrino=2};
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| 62 | G4double daughterM[3];
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| 63 |
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| 64 | protected:
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| 65 | // calcurate momentum of daughters
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| 66 | // results will be stored in Edaughter[3] and Pdaughter[3]
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| 67 | void PhaseSpace(G4double Mparent,
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| 68 | const G4double* Mdaughter,
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| 69 | G4double* Edaughter,
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| 70 | G4double* Pdaughter);
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| 71 |
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| 72 | protected:
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| 73 | // Dalitz Plot Density
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| 74 | // KL3 decay Dalitz Plot Density
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| 75 | // see Chounet et al Phys. Rep. 4, 201
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| 76 | // arguments
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| 77 | // Epi: kinetic enregy of pion
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| 78 | // El: kinetic enregy of lepton (e or mu)
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| 79 | // Enu: kinetic energy of nutrino
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| 80 | // constants
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| 81 | // pLambda : linear energy dependence of f+
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| 82 | // pXi0 : = f+(0)/f-
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| 83 | // pNorm : normalization factor
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| 84 | G4double DalitzDensity(G4double Epi, G4double El, G4double Enu);
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| 85 | private:
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| 86 | // constants used in DalitzDensity()
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| 87 | // Kon mass
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| 88 | G4double massK;
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| 89 | // coefficients
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| 90 | G4double pLambda;
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| 91 | G4double pXi0;
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| 92 | G4double pNormalization;
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| 93 |
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| 94 | public:
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| 95 | void SetDalitzParameter(G4double aLambda, G4double aXi );
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| 96 | G4double GetDalitzParameterLambda() const;
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| 97 | G4double GetDalitzParameterXi() const;
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| 98 | };
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| 99 |
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| 100 | inline
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| 101 | void G4KL3DecayChannel::SetDalitzParameter(G4double aLambda, G4double aXi)
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| 102 | {
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| 103 | pLambda = aLambda;
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| 104 | pXi0 = aXi;
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| 105 | }
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| 106 |
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| 107 | inline
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| 108 | G4double G4KL3DecayChannel::GetDalitzParameterLambda() const
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| 109 | {
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| 110 | return pLambda;
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| 111 | }
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| 112 |
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| 113 | inline
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| 114 | G4double G4KL3DecayChannel::GetDalitzParameterXi() const
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| 115 | {
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| 116 | return pXi0;
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| 117 | }
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| 118 |
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| 119 |
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| 120 | #endif
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| 121 |
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| 122 |
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| 123 |
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| 124 |
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