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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4QNuNuNuclearCrossSection.hh,v 1.1 2009/11/16 18:15:42 mkossov Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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29 | // |
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30 | // |
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31 | // GEANT4 physics class: G4QNuNuNuclearCrossSection -- header file |
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32 | // M.V. Kossov, CERN-ITEP(Moscow), 20-DEC-2005 |
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33 | // The last update: M.V. Kossov, CERN/ITEP (Moscow) 20-DEC-2005 |
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34 | // |
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35 | // Short description: this G4 singletone class calculates (nu,nu) Nuclear cross section |
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36 | // (Energy limit: E<320GeV->badExtrapolation) for a particular isotope (proportional to A) |
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37 | // **************************************************************************************** |
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38 | |
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39 | #ifndef G4QNuNuNuclearCrossSection_h |
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40 | #define G4QNuNuNuclearCrossSection_h 1 |
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41 | |
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42 | #include "G4ParticleTable.hh" |
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43 | #include "G4NucleiProperties.hh" |
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44 | #include <vector> |
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45 | #include "Randomize.hh" |
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46 | #include "G4MuonPlus.hh" |
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47 | #include "G4MuonMinus.hh" |
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48 | #include "G4VQCrossSection.hh" |
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49 | |
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50 | class G4QNuNuNuclearCrossSection : public G4VQCrossSection |
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51 | { |
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52 | protected: |
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53 | |
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54 | G4QNuNuNuclearCrossSection() {}; |
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55 | |
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56 | public: |
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57 | |
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58 | ~G4QNuNuNuclearCrossSection(); |
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59 | |
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60 | static G4VQCrossSection* GetPointer(); // Gives a pointer to this singletone |
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61 | |
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62 | G4double ThresholdEnergy(G4int Z, G4int N, G4int PDG=14); |
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63 | |
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64 | // At present momentum (pMom) must be in GeV (@@ Units) |
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65 | virtual G4double GetCrossSection(G4bool fCS, G4double pMom, G4int tgZ, G4int tgN, |
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66 | G4int pPDG=0); |
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67 | |
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68 | G4double CalculateCrossSection(G4bool CS, G4int F, G4int I, G4int PDG, G4int Z, |
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69 | G4int N, G4double Momentum); |
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70 | |
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71 | G4int GetExchangePDGCode(); |
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72 | |
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73 | G4double GetDirectPart(G4double Q2); |
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74 | |
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75 | G4double GetNPartons(G4double Q2); |
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76 | |
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77 | G4double GetQEL_ExchangeQ2(); |
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78 | |
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79 | G4double GetNQE_ExchangeQ2(); |
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80 | |
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81 | // Get static members |
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82 | G4double GetLastTOTCS() {return lastSig;} |
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83 | G4double GetLastQELCS() {return lastQEL;} |
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84 | |
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85 | private: |
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86 | G4int GetFunctions(G4int z, G4int n, G4double* t, G4double* q, G4double* e); |
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87 | G4double HighEnergyTX(G4double lE); |
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88 | G4double HighEnergyQE(G4double lE); |
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89 | |
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90 | // Body |
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91 | private: |
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92 | static G4bool onlyCS; // flag to calculate only CS (not TX & QE) |
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93 | static G4double lastSig; // Last calculated total cross section |
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94 | static G4double lastQEL; // Last calculated quasi-elastic cross section |
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95 | static G4int lastL; // Last bin used in the cross section TheLastBin |
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96 | static G4double lastE; // Last energy used in the cross section Energy |
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97 | static G4double* lastEN; // Pointer to the last array of the energy axis |
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98 | static G4double* lastTX; // Pointer to the last array of the total CS function |
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99 | static G4double* lastQE; // Pointer to the last array of the QE CS function |
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100 | static G4int lastPDG; // The last projectile PDG |
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101 | static G4int lastN; // The last N of calculated nucleus |
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102 | static G4int lastZ; // The last Z of calculated nucleus |
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103 | static G4double lastP; // Last used in the cross section Momentum |
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104 | static G4double lastTH; // Last value of the Momentum Threshold |
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105 | static G4double lastCS; // Last value of the Cross Section |
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106 | static G4int lastI; // The last position in the DAMDB |
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107 | static std::vector <G4double*>* TX; // Vector of pointers to the TX tabulated functions |
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108 | static std::vector <G4double*>* QE; // Vector of pointers to the QE tabulated functions |
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109 | }; |
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110 | |
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111 | #endif |
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