G4HadronNucleonXsc.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
//
// 14.03.07 V. Grichine - first implementation
// 04.11.11 V. Grichine - update for kaon-(p,n) xsc, vector spline
// 21.02.12 V. Grichine - update for pion-(p,n) xsc, NS fit++, vector spline
// 30.07.18 V. Ivanchenko - general clean-up
// 30.09.18 V. Grichine hyperon-nucleon xsc first implementation
// 09.04.19 V. Grichine hyperon-nucleon xsc for c- and b- hyperons (and s-)
// 12.04.19 V. Grichine meson-nucleon xsc for c- and b- hyperons (and s-)
// 09.05.20 V. Ivanchenko general code clean-up
 
 
#ifndef G4HadronNucleonXsc_h
#define G4HadronNucleonXsc_h
 
#include "globals.hh"
#include "G4ParticleDefinition.hh"
#include "G4DynamicParticle.hh"
 
class G4Pow;
class G4Element;
 
class G4HadronNucleonXsc 
{
public:
 
  explicit G4HadronNucleonXsc ();
  ~G4HadronNucleonXsc ();
   
  // Xsc parametrisations return total x-section  
  G4double HadronNucleonXsc(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin);
  
  G4double HadronNucleonXscPDG(const G4ParticleDefinition* theParticle, 
                   const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double HadronNucleonXscNS(const G4ParticleDefinition* theParticle, 
                  const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double KaonNucleonXscNS(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double KaonNucleonXscGG(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double KaonNucleonXscVG(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double HyperonNucleonXscNS(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin);
  
  G4double SCBMesonNucleonXscNS(const G4ParticleDefinition* theParticle, 
                const G4ParticleDefinition* nucleon, G4double ekin );
  
  G4double HadronNucleonXscVU(const G4ParticleDefinition* theParticle, 
                  const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double HadronNucleonXscEL(const G4ParticleDefinition* theParticle, 
                  const G4ParticleDefinition* nucleon, G4double ekin);
 
  G4double CoulombBarrier(const G4ParticleDefinition* theParticle, 
              const G4ParticleDefinition* nucleon, G4double ekin);
 
  // Xsc for G4DynamicParticle projectile
  inline G4double GetHadronNucleonXscEL(const G4DynamicParticle* dp, 
                    const G4ParticleDefinition* p)
  { return HadronNucleonXscEL(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetHadronNucleonXscPDG(const G4DynamicParticle* dp, 
                     const G4ParticleDefinition* p)
  { return HadronNucleonXscPDG(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetHadronNucleonXscNS(const G4DynamicParticle* dp, 
                    const G4ParticleDefinition* p)
  { return HadronNucleonXscNS(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetKaonNucleonXscGG(const G4DynamicParticle* dp, 
                      const G4ParticleDefinition* p)
  { return KaonNucleonXscGG(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetHyperonNucleonXscNS(const G4DynamicParticle* dp, 
                    const G4ParticleDefinition* p)
  { return HyperonNucleonXscNS(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetHadronNucleonXscVU(const G4DynamicParticle* dp, 
                    const G4ParticleDefinition* p)
  { return HadronNucleonXscVU(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  inline G4double GetCoulombBarrier(const G4DynamicParticle* dp, 
                    const G4ParticleDefinition* p)
  { return CoulombBarrier(dp->GetDefinition(), p, dp->GetKineticEnergy()); }
 
  // Xsc access
  inline G4double GetTotalHadronNucleonXsc()     const { return fTotalXsc;     }; 
  inline G4double GetElasticHadronNucleonXsc()   const { return fElasticXsc;   }; 
  inline G4double GetInelasticHadronNucleonXsc() const { return fInelasticXsc; }; 
 
  void CrossSectionDescription(std::ostream&) const;
 
private:
 
  inline G4double CalcMandelstamS(G4double ekin1, G4double mass1, G4double mass2)
  { return mass1*mass1 + mass2*mass2 + 2*mass2*(ekin1 + mass1); }
 
  inline G4double CalculateEcmValue(G4double ekin1, G4double mass1, G4double mass2)
  { return std::sqrt(CalcMandelstamS(ekin1, mass1, mass2)); };
 
  G4double fTotalXsc, fElasticXsc, fInelasticXsc;
  G4Pow* g4calc;
 
  const G4ParticleDefinition* theProton;
  const G4ParticleDefinition* theNeutron;
  const G4ParticleDefinition* thePiPlus;
  // strange
  const G4ParticleDefinition* theKPlus;
  const G4ParticleDefinition* theKMinus;
  const G4ParticleDefinition* theK0S;
  const G4ParticleDefinition* theK0L;
};
 
#endif