G4INCLNDFHardSphere.hh

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//
// INCL++ intra-nuclear cascade model
// Alain Boudard, CEA-Saclay, France
// Joseph Cugnon, University of Liege, Belgium
// Jean-Christophe David, CEA-Saclay, France
// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
// Sylvie Leray, CEA-Saclay, France
// Davide Mancusi, CEA-Saclay, France
//
#define INCLXX_IN_GEANT4_MODE 1
 
#include "globals.hh"
 
/** \file G4INCLNDFHardSphere.hh
 * \brief NDF* class for the deuteron density according to the HardSphere
 *        potential.
 *
 * \date 16 July 2012
 * \author Davide Mancusi
 */
 
#ifndef G4INCLNDFHARDSPHERE_HH_
#define G4INCLNDFHARDSPHERE_HH_
 
#include "G4INCLIFunction1D.hh"
#include "G4INCLParticleTable.hh"
#include "G4INCLDeuteronDensity.hh"
 
namespace G4INCL {
 
  namespace NuclearDensityFunctions {
 
    class HardSphere : public IFunction1D {
      public:
        HardSphere(const G4double rMax) :
          // We let the function go up to rMax. This can be the Fermi momentum
          // for a sphere in momentum space, or the surface radius for a
          // hard-sphere nucleus.
          IFunction1D(0., rMax),
          normalisation(3./std::pow(rMax,3.))
      {};
 
        inline G4double operator()(const G4double x) const {
          return x*x*normalisation;
        }
      protected:
        const G4double normalisation;
    };
 
  }
 
}
 
#endif // G4INCLNDFHARDSPHERE_HH_