G4QKaonPlusNuclearCrossSection.hh

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00027 // GEANT4 tag $Name: not supported by cvs2svn $
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00030 // GEANT4 physics class: G4QKaonPlusNuclearCrossSection -- header file
00031 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
00032 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
00033 //
00034 // ****************************************************************************************
00035 // ********* This HEADER is temporary moved from the photolepton_hadron directory *********
00036 // ******* DO NOT MAKE ANY CHANGE! With time it'll move back to photolepton...(M.K.) ******
00037 // ****************************************************************************************
00038 // Short description: CHIPS cross-sections for pi(minus)-nuclear interactions
00039 // It is purely fake now (just a copy of the proton-nuclear XS) !!! only for testing !!!
00040 // -------------------------------------------------------------------------------------
00041 
00042 #ifndef G4QKaonPlusNuclearCrossSection_h
00043 #define G4QKaonPlusNuclearCrossSection_h 1
00044 
00045 #include "G4ParticleTable.hh"
00046 #include "G4NucleiProperties.hh"
00047 #include <vector>
00048 #include "G4VQCrossSection.hh"
00049 #include "G4QPDGCode.hh"
00050 
00051 class G4QKaonPlusNuclearCrossSection : public G4VQCrossSection
00052 {
00053 protected:
00054 
00055   G4QKaonPlusNuclearCrossSection()  {}
00056 
00057 public:
00058 
00059   ~G4QKaonPlusNuclearCrossSection();
00060 
00061   static G4VQCrossSection* GetPointer(); // Gives a pointer to this singletone
00062 
00063   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
00064   virtual G4double GetCrossSection(G4bool fCS, G4double pMom, G4int tgZ, G4int tgN,
00065                                    G4int pPDG=321);
00066 
00067   G4double CalculateCrossSection(G4bool CS, G4int F, G4int I, G4int PDG, G4int Z,
00068                                  G4int N, G4double Momentum);
00069 
00070 private:
00071   G4int    GetFunctions(G4int tZ, G4int tN, G4double* y, G4double* z); // y&z=ArrayPointers
00072   G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
00073   G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
00074   G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
00075   G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c)
00076 // Body
00077 private:
00078   static G4double  lastSig; // Last value of the Cross Section
00079   static G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
00080   static G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
00081   static G4double  lastE;   // Last used in the cross section Energy
00082   static G4int     lastPDG; // The last projectile PDG
00083   static G4int     lastN;   // The last N of calculated nucleus
00084   static G4int     lastZ;   // The last Z of calculated nucleus
00085   static G4double  lastP;   // Last used in the cross section Momentum
00086   static G4double  lastTH;  // Last value of the Momentum Threshold
00087   static G4double  lastCS;  // Last value of the Cross Section
00088   static G4int     lastI;   // The last position in the DAMDB
00089   static std::vector<G4double*>* LEN;  // Vector of pointers to LowEnProtonCrossSection
00090   static std::vector<G4double*>* HEN;  // Vector of pointers to HighEnProtonCrossSection
00091 };
00092 
00093 #endif

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