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G4KL3DecayChannel.hh
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27 // $Id$
28 //
29 //
30 // ------------------------------------------------------------
31 // GEANT 4 class header file
32 //
33 // History: first implementation, based on object model of
34 // 7 June 1997 H.Kurashige
35 // ------------------------------------------------------------
36 #ifndef G4KL3DecayChannel_h
37 #define G4KL3DecayChannel_h 1
38 
39 #include "G4ios.hh"
40 #include "globals.hh"
41 #include "G4VDecayChannel.hh"
42 
44 {
45  public: // With Description
46  //Constructors
47  G4KL3DecayChannel(const G4String& theParentName,
48  G4double theBR,
49  const G4String& thePionName,
50  const G4String& theLeptonName,
51  const G4String& theNutrinoName);
52  // Destructor
53  virtual ~G4KL3DecayChannel();
54 
55  protected:
56  // Copy constructor and assignment operator
59 
60  private:
62 
63  public: // With Description
64  virtual G4DecayProducts *DecayIt(G4double);
65 
66  protected:
67  // assignment of daughter particles for arrays of daughters[] etc.
68  enum{idPi=0, idLepton=1, idNutrino=2};
70 
71  protected:
72  // calcurate momentum of daughters
73  // results will be stored in Edaughter[3] and Pdaughter[3]
74  void PhaseSpace(G4double Mparent,
75  const G4double* Mdaughter,
76  G4double* Edaughter,
77  G4double* Pdaughter);
78 
79  protected:
80  // Dalitz Plot Density
81  // KL3 decay Dalitz Plot Density
82  // see Chounet et al Phys. Rep. 4, 201
83  // arguments
84  // Epi: kinetic enregy of pion
85  // El: kinetic enregy of lepton (e or mu)
86  // Enu: kinetic energy of nutrino
87  // constants
88  // pLambda : linear energy dependence of f+
89  // pXi0 : = f+(0)/f-
90  // pNorm : normalization factor
92  private:
93  // constants used in DalitzDensity()
94  // Kon mass
95  G4double massK;
96  // coefficients
97  G4double pLambda;
98  G4double pXi0;
99 
100  public:
101  void SetDalitzParameter(G4double aLambda, G4double aXi );
104 };
105 
106 inline
108 {
109  pLambda = aLambda;
110  pXi0 = aXi;
111 }
112 
113 inline
115 {
116  return pLambda;
117 }
118 
119 inline
121 {
122  return pXi0;
123 }
124 
125 
126 #endif
127 
128 
129 
130