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G4QKaonMinusNuclearCrossSection.hh
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27 // GEANT4 tag $Name: not supported by cvs2svn $
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29 //
30 // GEANT4 physics class: G4QKaonMinusNuclearCrossSection -- header file
31 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
32 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
33 //
34 // ****************************************************************************************
35 // ********* This HEADER is temporary moved from the photolepton_hadron directory *********
36 // ******* DO NOT MAKE ANY CHANGE! With time it'll move back to photolepton...(M.K.) ******
37 // ****************************************************************************************
38 // Short description: CHIPS cross-sections for pi(minus)-nuclear interactions
39 // It is purely fake now (just a copy of the proton-nuclear XS) !!! only for testing !!!
40 // -------------------------------------------------------------------------------------
41 
42 #ifndef G4QKaonMinusNuclearCrossSection_h
43 #define G4QKaonMinusNuclearCrossSection_h 1
44 
45 #include "G4ParticleTable.hh"
46 #include "G4NucleiProperties.hh"
47 #include <vector>
48 #include "G4VQCrossSection.hh"
49 
51 {
52 protected:
53 
55 
56 public:
57 
59 
60  static G4VQCrossSection* GetPointer(); // Gives a pointer to this singletone
61 
62  // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
63  virtual G4double GetCrossSection(G4bool fCS, G4double pMom, G4int tgZ, G4int tgN,
64  G4int pPDG=-321);
65 
67  G4int N, G4double Momentum);
68 
69 private:
70  G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
71  G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
72  G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
73  G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c)
74 // Body
75 private:
76  static G4double lastSig; // Last value of the Cross Section
77  static G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
78  static G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
79  static G4double lastE; // Last used in the cross section Energy
80  static G4int lastPDG; // The last projectile PDG
81  static G4int lastN; // The last N of calculated nucleus
82  static G4int lastZ; // The last Z of calculated nucleus
83  static G4double lastP; // Last used in the cross section Momentum
84  static G4double lastTH; // Last value of the Momentum Threshold
85  static G4double lastCS; // Last value of the Cross Section
86  static G4int lastI; // The last position in the DAMDB
87  static std::vector<G4double*>* LEN; // Vector of pointers to LowEnProtonCrossSection
88  static std::vector<G4double*>* HEN; // Vector of pointers to HighEnProtonCrossSection
89 };
90 
91 #endif