include/Geant4/G4ChipsPionMinusInelasticXS.hh

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0029 // GEANT4 physics class: G4ChipsPionMinusInelasticXS -- 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 #ifndef G4ChipsPionMinusInelasticXS_h
0040 #define G4ChipsPionMinusInelasticXS_h 1
0041
0042 #include "G4ParticleTable.hh"
0043 #include "G4NucleiProperties.hh"
0044 #include <vector>
0045 #include "G4VCrossSectionDataSet.hh"
0046
0047 class G4ChipsPionMinusInelasticXS :  public G4VCrossSectionDataSet
0048 {
0049 public:
0050
0051   G4ChipsPionMinusInelasticXS();
0052
0053   ~G4ChipsPionMinusInelasticXS();
0054
0055   static const char* Default_Name() {return "ChipsPionMinusInelasticXS";}
0056
0057   virtual void CrossSectionDescription(std::ostream&) const;
0058
0059   virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
0060                  const G4Element* elm,
0061                  const G4Material* mat );
0062
0063   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
0064   virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
0065                       const G4Isotope* iso = 0,
0066                       const G4Element* elm = 0,
0067                       const G4Material* mat = 0);
0068
0069   virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
0070
0071 private:
0072   G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
0073                                  G4int N, G4double Momentum);
0074
0075   G4int    GetFunctions(G4int tZ, G4int tN, G4double* y, G4double* z); // y&z=ArrayPointers //Uzhi
0076   G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
0077   G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
0078   G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
0079   G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c) // Uzhi
0080   G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);
0081 // Body
0082 private:
0083    G4double  lastSig=0.; // Last value of the Cross Section
0084    G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
0085    G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
0086    G4double  lastE=0.;  // Last used in the cross section Energy
0087    G4int     lastPDG=0; // The last projectile PDG
0088    G4int     lastN;   // The last N of calculated nucleus
0089    G4int     lastZ;   // The last Z of calculated nucleus
0090    G4double  lastP;   // Last used in the cross section Momentum
0091    G4double  lastTH;  // Last value of the Momentum Threshold
0092    G4double  lastCS;  // Last value of the Cross Section
0093    G4int     lastI;   // The last position in the DAMDB
0094    std::vector<G4double*>* LEN;  // Vector of pointers to LowEnProtonCrossSection
0095    std::vector<G4double*>* HEN;  // Vector of pointers to HighEnProtonCrossSection
0096
0097    G4int j=0;                    // A#0f Z/N-records already tested in AMDB
0098    std::vector <G4int> colN;  // Vector of N for calculated nuclei (isotops)
0099    std::vector <G4int> colZ;  // Vector of Z for calculated nuclei (isotops)
0100    std::vector <G4double> colP;  // Vector of last momenta for the reaction
0101    std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
0102    std::vector <G4double> colCS; // Vector of last cross sections for the reaction
0103 };
0104
0105 #endif