G4LEnp.hh

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//
// G4 Low energy model: n-p scattering
// F.W. Jones, L.G. Greeniaus, H.P. Wellisch
//  
// For further comments see G4LEnpData.hh and G4LEnp.cc
//
// 02.01.2014 V. Grichine add SampInvariantT for testing ds/dt

#ifndef G4LEnp_h
#define G4LEnp_h 1
 
#include "globals.hh"
#include "G4HadronElastic.hh"

class G4LEnp : public G4HadronElastic  // G4HadronicInteraction
{
private:

  enum { NENERGY=39, NANGLE=180 };

public:

  explicit G4LEnp();

  ~G4LEnp() override;
 
  G4HadFinalState* ApplyYourself(const G4HadProjectile& aTrack,
                                 G4Nucleus& targetNucleus) override;

  // sample momentum transfer using Lab. momentum

  G4double SampleInvariantT(const G4ParticleDefinition* p, 
          G4double plab, G4int Z, G4int A) override;
private:

 // The following arrays are declared static to allow the use of initializers.
 // They are initialized in G4LEnpData.hh

  static const G4float sig[NENERGY][NANGLE];
  static const G4float pcm[NENERGY], elab[NENERGY]; 
  static const G4float dsigmax[NENERGY], sigtot[NENERGY];

};

#endif