Geant4  10.01.p02
G4PionRadiativeDecayChannel.hh
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25 //
26 // ------------------------------------------------------------
27 // GEANT 4 class header file
28 //
29 // History:
30 // 30 July 2007 P.Gumplinger
31 // Samples Radiative Pion Decay
32 // Reference:
33 // TRIUMF/PIENU Technote:
34 // "Inclusion of pi->enug in the Monte Carlo"
35 // by M. Blecher
36 //
37 // ------------------------------------------------------------
38 //
39 //
40 //
41 //
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45 
46 #ifndef G4PionRadiativeDecayChannel_h
47 #define G4PionRadiativeDecayChannel_h 1
48 
49 #include "globals.hh"
50 #include "Randomize.hh"
51 #include "G4ThreeVector.hh"
52 #include "G4VDecayChannel.hh"
53 
55 {
56  // Class Decription
57  // This class describes radiative pion decay kinemtics, but
58  // gives incorrect energy spectrum for neutrino
59 
60  public: // With Description
61 
62  //Constructors
63  G4PionRadiativeDecayChannel(const G4String& theParentName,
64  G4double theBR);
65  // Destructor
67 
68  protected:
69  // Copy constructor and assignment operator
72 
73  protected:
75 
76  public: // With Description
77 
79 
80  private:
81 
83 
89 
91 
92  G4double D2W(const G4double x, const G4double y);
93 
94 };
95 
97  const G4double y)
98 {
99  G4double d2w = cib*(1.-y)*(1.+((1.-x)*(1.-x)))/((x*x)*(x+y-1.)) +
100  csdp*(1.-x)*((x+y-1.)*(x+y-1.)) +
101  csdm*(1.-x)*((1.-y)*(1.-y)) +
102  cif*(x-1.)*(1.-y)/x +
103  cig*(1.-y)*(1.-x+(x*x)/(x+y-1.))/x;
104  return d2w;
105 }
106 
107 #endif
G4PionRadiativeDecayChannel & operator=(const G4PionRadiativeDecayChannel &)
G4double D2W(const G4double x, const G4double y)
virtual G4DecayProducts * DecayIt(G4double)
double G4double
Definition: G4Types.hh:76