G4ChipsKaonMinusInelasticXS.hh

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// GEANT4 physics class: G4ChipsKaonMinusInelasticXS -- header file
// Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
// The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
//
// ****************************************************************************************
// Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for 
// K(minus)-nuclear  interactions. Original author: M. Kossov
// -------------------------------------------------------------------------------------

#ifndef G4ChipsKaonMinusInelasticXS_h
#define G4ChipsKaonMinusInelasticXS_h 1

#include "G4ParticleTable.hh"
#include "G4NucleiProperties.hh"
#include <vector>
#include "G4VCrossSectionDataSet.hh"

class G4ChipsKaonMinusInelasticXS : public G4VCrossSectionDataSet
{

public:

  G4ChipsKaonMinusInelasticXS();
  
  ~G4ChipsKaonMinusInelasticXS();

  static const char* Default_Name() {return "ChipsKaonMinusInelasticXS";}

  virtual void CrossSectionDescription(std::ostream&) const;

  virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,    
         const G4Element* elm,
         const G4Material* mat );

  // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
  virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,  
              const G4Isotope* iso = 0,
              const G4Element* elm = 0,
              const G4Material* mat = 0);

  virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
  
private:
  G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
                                 G4int N, G4double Momentum);

  G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
  G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
  G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
  G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);

// Body
private:
  G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
  G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
  G4int     lastN;   // The last N of calculated nucleus
  G4int     lastZ;   // The last Z of calculated nucleus
  G4double  lastP;   // Last used in the cross section Momentum
  G4double  lastTH;  // Last value of the Momentum Threshold
  G4double  lastCS;  // Last value of the Cross Section
  G4int     lastI;   // The last position in the DAMDB
  std::vector<G4double*>* LEN;  // Vector of pointers to LowEnProtonCrossSection
  std::vector<G4double*>* HEN;  // Vector of pointers to HighEnProtonCrossSection
    //
    G4int j;                      // A#0f Z/N-records already tested in AMDB
    std::vector <G4int> colN;  // Vector of N for calculated nuclei (isotops)
    std::vector <G4int>  colZ;  // Vector of Z for calculated nuclei (isotops)
    std::vector <G4double> colP;  // Vector of last momenta for the reaction
    std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
    std::vector <G4double> colCS; // Vector of last cross sections for the reaction
    
};

#endif