G4NeutronElasticXS.hh

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// $Id$
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// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:    G4NeutronElasticXS
//
// Author  Ivantchenko, Geant4, 3-AUG-09
//
// Modifications:
//
 
// Class Description:
// This is a base class for neutron elastic hadronic cross section based on
// data files from G4NEUTRONXSDATA data set 
// Class Description - End

#ifndef G4NeutronElasticXS_h
#define G4NeutronElasticXS_h 1

#include "G4VCrossSectionDataSet.hh"
#include "globals.hh"
#include <vector>

class G4DynamicParticle;
class G4ParticleDefinition;
class G4Element;
class G4PhysicsVector;
class G4GlauberGribovCrossSection;
class G4HadronNucleonXsc;

class G4NeutronElasticXS : public G4VCrossSectionDataSet
{
public: // With Description

  G4NeutronElasticXS();

  virtual ~G4NeutronElasticXS();

  virtual
  G4bool IsElementApplicable(const G4DynamicParticle*, 
                             G4int Z, const G4Material*);

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

  virtual
  void BuildPhysicsTable(const G4ParticleDefinition&);

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

private: 

  void Initialise(G4int Z, G4DynamicParticle* dp = 0, const char* = 0);

  G4NeutronElasticXS & operator=(const G4NeutronElasticXS &right);
  G4NeutronElasticXS(const G4NeutronElasticXS&);
  
  G4GlauberGribovCrossSection* ggXsection;
  G4HadronNucleonXsc* fNucleon;

  const G4ParticleDefinition* proton;

  std::vector<G4PhysicsVector*> data;
  std::vector<G4double>         coeff;
  G4int   maxZ;

  G4bool  isInitialized;

};

#endif

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