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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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18 | // * This code implementation is the result of the scientific and * |
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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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28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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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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