include/Geant4/G4ChipsPionPlusInelasticXS.hh

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0029 // GEANT4 physics class: G4ChipsPionPlusInelasticXS -- header file
0030 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
0031 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
0032 //
0033 // -------------------------------------------------------------------------------------
0034 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
0035 // pion interactions. Original author: M. Kossov
0036 // -------------------------------------------------------------------------------------
0037 //
0038
0039
0040 #ifndef G4ChipsPionPlusInelasticXS_h
0041 #define G4ChipsPionPlusInelasticXS_h 1
0042
0043 #include "G4ParticleTable.hh"
0044 #include "G4NucleiProperties.hh"
0045 #include <vector>
0046 #include "G4VCrossSectionDataSet.hh"
0047
0048 class G4ChipsPionPlusInelasticXS : public G4VCrossSectionDataSet
0049 {
0050
0051 public:
0052
0053   G4ChipsPionPlusInelasticXS();
0054
0055   ~G4ChipsPionPlusInelasticXS();
0056
0057   static const char* Default_Name() {return "ChipsPionPlusInelasticXS";}
0058
0059   virtual void CrossSectionDescription(std::ostream&) const;
0060
0061   virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
0062                  const G4Element* elm,
0063                  const G4Material* mat );
0064
0065   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
0066   virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
0067                       const G4Isotope* iso = 0,
0068                       const G4Element* elm = 0,
0069                       const G4Material* mat = 0);
0070
0071   virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
0072
0073 private:
0074   G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
0075                                  G4int N, G4double Momentum);
0076
0077   G4int    GetFunctions(G4int tZ, G4int tN, G4double* y, G4double* z); // y&z=ArrayPointers
0078   G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
0079   G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
0080   G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
0081   G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c)
0082   G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);
0083 // Body
0084 private:
0085    G4double  lastSig=0.; // Last value of the Cross Section
0086    G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
0087    G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
0088    G4double  lastE=0.;  // Last used in the cross section Energy
0089    G4int     lastPDG=0; // The last projectile PDG
0090    G4int     lastN;   // The last N of calculated nucleus
0091    G4int     lastZ;   // The last Z of calculated nucleus
0092    G4double  lastP;   // Last used in the cross section Momentum
0093    G4double  lastTH;  // Last value of the Momentum Threshold
0094    G4double  lastCS;  // Last value of the Cross Section
0095    G4int     lastI;   // The last position in the DAMDB
0096    std::vector<G4double*>* LEN;  // Vector of pointers to LowEnProtonCrossSection
0097    std::vector<G4double*>* HEN;  // Vector of pointers to HighEnProtonCrossSection
0098
0099     G4int j=0;                   // A#0f Z/N-records already tested in AMDB
0100     std::vector <G4int> colN;  // Vector of N for calculated nuclei (isotops)
0101     std::vector <G4int> colZ;  // Vector of Z for calculated nuclei (isotops)
0102     std::vector <G4double> colP;  // Vector of last momenta for the reaction
0103     std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
0104     std::vector <G4double> colCS; // Vector of last cross sections for the reaction
0105
0106 };
0107
0108 #endif