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//
// by JPW, working, but to be cleaned up. @@@@
// G.Folger, 29-sept-2006: extend to 1TeV, using a constant above 20GeV
// D. Wright, 23-Dec-2006: added isotope dependence
// G.Folger, 25-Nov-2009: extend to 100TeV, using a constant above 20GeV
//

#ifndef G4ProtonInelasticCrossSection_h
#define G4ProtonInelasticCrossSection_h

// Class Description
// Cross-sections for proton nuclear scattering up to 20 GeV, getting the low
// energy threshold behaviour right.
// H.P. Wellisch (TRIUMF), D. Axen (British Columbia U.). 1996. 
// Published in Phys.Rev.C54:1329-1332,1996
// Implements corrected parameterization from  
// http://laws.lanl.gov/XCI/PEOPLE/rep/pdf/RPS96.pdf
// Class Description - End


#include "globals.hh"
#include "G4Proton.hh"

#include "G4VCrossSectionDataSet.hh"

class G4ProtonInelasticCrossSection : public G4VCrossSectionDataSet
{
   public:
   
   virtual
   G4bool IsApplicable(const G4DynamicParticle* aPart, const G4Element* aEle)
   {
     G4bool result = false;
     if(( aPart->GetDefinition()==G4Proton::Proton()) &&
        ( aPart->GetKineticEnergy()<100*TeV) ) result = true;
     if(aEle->GetZ()<3) result = false;
     return result;
   }

   G4bool IsZAApplicable(const G4DynamicParticle* aParticle,
                         G4double ZZ, G4double /*AA*/)
   {
     G4bool result = false;
     if (( aParticle->GetDefinition() == G4Proton::Proton()) &&
         ( aParticle->GetKineticEnergy() < 100*TeV) ) result = true;
     if (ZZ < 3) result = false;
     return result;
   }

   virtual
   G4double GetCrossSection(const G4DynamicParticle*, 
                            const G4Element*, G4double aTemperature);
   
   G4double GetIsoZACrossSection(const G4DynamicParticle* aParticle, 
                                 G4double ZZ, G4double AA, 
                                 G4double /*aTemperature*/)
   {
     return GetCrossSection(aParticle->GetKineticEnergy(), AA, ZZ);
   }
 

   G4double GetCrossSection(G4double anEnergy, G4double anA, G4double aZ);

   virtual
   void BuildPhysicsTable(const G4ParticleDefinition&)
   {}

   virtual
   void DumpPhysicsTable(const G4ParticleDefinition&) 
   {G4cout << "G4ProtonInelasticCrossSection: uses formula"<<G4endl;}

};

#endif
