G4BGGNucleonElasticXS.hh

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// $Id: G4BGGNucleonElasticXS.hh 76889 2013-11-18 13:01:55Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4BGGNucleonElasticXS
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 13.03.2007
// Modifications:
//
//
// Class Description:
//
// Wrapper of proton and neutron elastic cross-sections using Barashenkov 
// parametersation below 100 GeV and Glauber-Gribov model above
//
// -------------------------------------------------------------------
//

#ifndef G4BGGNucleonElasticXS_h
#define G4BGGNucleonElasticXS_h 1

#include "globals.hh"
#include "G4VCrossSectionDataSet.hh"
#include "G4ParticleDefinition.hh"
#include "G4Element.hh"

class G4GlauberGribovCrossSection;
class G4NucleonNuclearCrossSection;
class G4HadronNucleonXsc;
class G4ComponentSAIDTotalXS;
class G4Material;
class G4Element;
class G4Isotope;

class G4BGGNucleonElasticXS : public G4VCrossSectionDataSet
{
public:

  G4BGGNucleonElasticXS (const G4ParticleDefinition*);

  virtual ~G4BGGNucleonElasticXS();
   
  virtual
  G4bool IsElementApplicable(const G4DynamicParticle*, G4int Z, 
                 const G4Material* mat = 0);

  virtual
  G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,  
             const G4Element* elm = 0,
             const G4Material* mat = 0);

  virtual
  G4double GetElementCrossSection(const G4DynamicParticle*, G4int Z,
                  const G4Material* mat = 0);

  virtual
  G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,  
                  const G4Isotope* iso = 0,
                  const G4Element* elm = 0,
                  const G4Material* mat = 0);

  virtual
  void BuildPhysicsTable(const G4ParticleDefinition&);

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

  inline void SetLowestCrossSection(G4double val);
  
private:

  G4double CoulombFactor(G4double kinEnergy, G4int Z);

  G4BGGNucleonElasticXS & operator=(const G4BGGNucleonElasticXS &right);
  G4BGGNucleonElasticXS(const G4BGGNucleonElasticXS&);

  G4double fGlauberEnergy;  
  G4double fPDGEnergy;  
  G4double fLowEnergy;  
  G4double fSAIDLowEnergyLimit;
  G4double fSAIDHighEnergyLimit;
  G4double fLowestXSection;
  G4double theGlauberFac[93];
  G4double theCoulombFac[93];
  G4int    theA[93];

  const G4ParticleDefinition*     particle;
  const G4ParticleDefinition*     theProton;
  G4GlauberGribovCrossSection*    fGlauber;
  G4NucleonNuclearCrossSection*   fNucleon;
  G4HadronNucleonXsc*             fHadron;
  G4ComponentSAIDTotalXS*         fSAID;
  G4bool                          isProton;
  G4bool                          isInitialized;
};

inline void G4BGGNucleonElasticXS::SetLowestCrossSection(G4double val)
{
  fLowestXSection = val;
}

#endif