G4ComponentGGHadronNucleusXsc.hh

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//
// Calculation of the total, elastic and inelastic cross-sections
// based on parametrisations of (proton, pion, kaon, photon) nucleon
// cross-sections and the hadron-nucleous cross-section model in 
// the framework of Glauber-Gribov approach
//
// 25.04.12 V. Grichine - first implementation based on 
//                        G4GlauberGribovCrossSection old interface
//
// 04.09.18 V. Ivantchenko Major revision of interfaces and implementation
// 01.10.18 V. Grichine strange hyperon xsc
// 27.05.19 V. Ivantchenko Removed obsolete methods and members 
 
#ifndef G4ComponentGGHadronNucleusXsc_h
#define G4ComponentGGHadronNucleusXsc_h 1
 
#include "globals.hh"
#include "G4Proton.hh"
#include "G4Nucleus.hh"
 
#include "G4VComponentCrossSection.hh"
 
class G4ParticleDefinition;
class G4HadronNucleonXsc;
class G4Pow;
 
class G4ComponentGGHadronNucleusXsc final : public G4VComponentCrossSection
{
public:
 
  explicit G4ComponentGGHadronNucleusXsc();
  ~G4ComponentGGHadronNucleusXsc() final;
 
  static const char* Default_Name() { return "Glauber-Gribov"; }
 
  // virtual interface methods
  G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
                       G4double kinEnergy, 
                       G4int Z, G4double A) final;
 
  G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
                       G4double kinEnergy,
                       G4int Z, G4int A) final;
 
  G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
                       G4double kinEnergy, 
                       G4int Z, G4double A) final;
 
  G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
                       G4double kinEnergy, 
                       G4int Z, G4int A) final;
 
  G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
                     G4double kinEnergy, 
                     G4int Z, G4double A) final;
 
  G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
                     G4double kinEnergy, 
                     G4int Z, G4int A) final;
 
  G4double ComputeQuasiElasticRatio(const G4ParticleDefinition* aParticle,
                    G4double kinEnergy, 
                    G4int Z, G4int A) final;
 
  // Glauber-Gribov cross section
  void ComputeCrossSections(const G4ParticleDefinition* aParticle,
                G4double kinEnergy, G4int Z, G4int A, G4int nL = 0);
 
  // additional public methods
  G4double GetProductionElementCrossSection(const G4ParticleDefinition* aParticle,
                        G4double kinEnergy, 
                        G4int Z, G4double A);
 
  G4double GetProductionIsotopeCrossSection(const G4ParticleDefinition* aParticle,
                        G4double kinEnergy, 
                        G4int Z, G4int A);
 
  G4double GetRatioSD(const G4DynamicParticle*, G4int At, G4int Zt);
  G4double GetRatioQE(const G4DynamicParticle*, G4int At, G4int Zt);
 
  G4double GetHadronNucleonXsc(const G4DynamicParticle*, const G4Element*);
  G4double GetHadronNucleonXsc(const G4DynamicParticle*, G4int At, G4int Zt);
 
  G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, const G4Element*);
  G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, G4int At, G4int Zt);
  G4double GetHadronNucleonXscNS(const G4DynamicParticle*, const G4Element*);
  G4double GetHadronNucleonXscNS(const G4DynamicParticle*, G4int At, G4int Zt);
 
  G4double GetHNinelasticXsc(const G4DynamicParticle*, const G4Element*);
  G4double GetHNinelasticXsc(const G4DynamicParticle*, G4int At, G4int Zt);
  G4double GetHNinelasticXscVU(const G4DynamicParticle*, G4int At, G4int Zt);
 
  void Description(std::ostream&) const final;
 
  inline G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,  
                         const G4Isotope* iso = nullptr,
                         const G4Element* elm = nullptr,
                         const G4Material* mat = nullptr);
 
  inline G4double GetElasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
  inline G4double GetInelasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
 
  inline G4double GetAxsc2piR2() const                   { return fAxsc2piR2; };
  inline G4double GetModelInLog() const                  { return fModelInLog; };
  inline G4double GetTotalGlauberGribovXsc() const       { return fTotalXsc; }; 
  inline G4double GetElasticGlauberGribovXsc() const     { return fElasticXsc; }; 
  inline G4double GetInelasticGlauberGribovXsc() const   { return fInelasticXsc; }; 
  inline G4double GetProductionGlauberGribovXsc() const  { return fProductionXsc; }; 
  inline G4double GetDiffractionGlauberGribovXsc() const { return fDiffractionXsc; }; 
 
  inline G4double GetParticleBarCorTot(const G4ParticleDefinition* theParticle, G4int Z);
  inline G4double GetParticleBarCorIn(const G4ParticleDefinition* theParticle, G4int Z);
 
private:
 
  static const G4double fNeutronBarCorrectionTot[93];
  static const G4double fNeutronBarCorrectionIn[93];
 
  static const G4double fProtonBarCorrectionTot[93];
  static const G4double fProtonBarCorrectionIn[93];
 
  static const G4double fPionPlusBarCorrectionTot[93];
  static const G4double fPionPlusBarCorrectionIn[93];
 
  static const G4double fPionMinusBarCorrectionTot[93];
  static const G4double fPionMinusBarCorrectionIn[93];
 
  G4double fTotalXsc, fElasticXsc, fInelasticXsc, fProductionXsc, fDiffractionXsc;
  G4double fAxsc2piR2, fModelInLog;
  G4double fEnergy; //Cache
 
  const G4ParticleDefinition* theGamma;
  const G4ParticleDefinition* theProton;
  const G4ParticleDefinition* theNeutron;
  const G4ParticleDefinition* theAProton;
  const G4ParticleDefinition* theANeutron;
  const G4ParticleDefinition* thePiPlus;
  const G4ParticleDefinition* thePiMinus;
  const G4ParticleDefinition* theKPlus;
  const G4ParticleDefinition* theKMinus;
  const G4ParticleDefinition* theK0S;
  const G4ParticleDefinition* theK0L;
  const G4ParticleDefinition* theLambda;
 
  G4HadronNucleonXsc* hnXsc;
 
  // Cache
  const G4ParticleDefinition* fParticle;
  G4int fZ, fA, fL;
 
};
 
////////////////////////////////////////////////////////////////
//
// Inlines
 
inline G4double 
G4ComponentGGHadronNucleusXsc::GetIsoCrossSection(const G4DynamicParticle* dp, 
                          G4int Z, G4int A,  
                          const G4Isotope*,
                          const G4Element*,
                          const G4Material*)
{
  ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
  return fTotalXsc;
}
 
inline G4double
G4ComponentGGHadronNucleusXsc::GetElasticGlauberGribov(
           const G4DynamicParticle* dp, G4int Z, G4int A)
{
  ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
  return fElasticXsc;
}
 
/////////////////////////////////////////////////////////////////
 
inline G4double
G4ComponentGGHadronNucleusXsc::GetInelasticGlauberGribov(
           const G4DynamicParticle* dp, G4int Z, G4int A)
{
  ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
  return fInelasticXsc;
}
 
/////////////////////////////////////////////////////////////////////
//
// return correction at Tkin = 90*GeV GG -> Barashenkov tot xsc, when it 
// is available, else return 1.0
 
inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorTot( 
                           const G4ParticleDefinition* theParticle, G4int ZZ)
{
  G4double cor = 1.0;
  G4int z = std::min(92, std::max(ZZ, 1));
  if(      theParticle == theProton ) cor = fProtonBarCorrectionTot[z]; 
  else if( theParticle == theNeutron) cor = fNeutronBarCorrectionTot[z]; 
  else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionTot[z];
  else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionTot[z];
  return cor;
}
 
/////////////////////////////////////////////////////////////////////
//
// return correction at Tkin = 90*GeV GG -> Barashenkov in xsc, when it 
// is available, else return 1.0
 
 
inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorIn( 
                           const G4ParticleDefinition* theParticle, G4int ZZ)
{
  G4double cor = 1.0;
  G4int z = std::min(92, std::max(ZZ, 1));
  if(      theParticle == theProton ) cor = fProtonBarCorrectionIn[z]; 
  else if( theParticle == theNeutron) cor = fNeutronBarCorrectionIn[z]; 
  else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionIn[z];
  else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionIn[z];
  return cor;
}
 
#endif