include/Geant4/G4INCLNDFWoodsSaxon.hh

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0025 //
0026 // INCL++ intra-nuclear cascade model
0027 // Alain Boudard, CEA-Saclay, France
0028 // Joseph Cugnon, University of Liege, Belgium
0029 // Jean-Christophe David, CEA-Saclay, France
0030 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
0031 // Sylvie Leray, CEA-Saclay, France
0032 // Davide Mancusi, CEA-Saclay, France
0033 //
0034 #define INCLXX_IN_GEANT4_MODE 1
0035
0036 #include "globals.hh"
0037
0038 /** \file G4INCLNDFWoodsSaxon.hh
0039  * \brief Class for Woods-Saxon density
0040  *
0041  * \date 16 July 2012
0042  * \author Davide Mancusi
0043  */
0044
0045 #ifndef G4INCLNDFWOODSSAXON_HH_
0046 #define G4INCLNDFWOODSSAXON_HH_
0047
0048 #include "G4INCLIFunction1D.hh"
0049 #include <cmath>
0050
0051 namespace G4INCL {
0052
0053   namespace NuclearDensityFunctions {
0054
0055     class WoodsSaxonRP : public IFunction1D {
0056       public:
0057         WoodsSaxonRP(G4double radiusParameter, G4double maximumRadius, G4double diffusenessParameter) :
0058           IFunction1D(0., maximumRadius),
0059           theRadiusParameter(radiusParameter),
0060           theDiffusenessParameter(diffusenessParameter)
0061       {}
0062
0063         inline G4double operator()(const G4double r) const {
0064           G4double wsax = std::pow(r,3)
0065             *std::exp((r - theRadiusParameter)/theDiffusenessParameter)
0066             /std::pow((1.0 + std::exp((r - theRadiusParameter)/theDiffusenessParameter)),2);
0067           return wsax/theDiffusenessParameter;
0068         }
0069
0070         inline G4double getRadiusParameter() { return theRadiusParameter; };
0071         inline G4double getDiffusenessParameter() { return theDiffusenessParameter; };
0072
0073         inline void setRadiusParameter(G4double r) { theRadiusParameter = r; };
0074         inline void setDiffusenessParameter(G4double a) { theDiffusenessParameter = a; };
0075
0076       protected:
0077         G4double theRadiusParameter, theDiffusenessParameter;
0078     };
0079
0080     class WoodsSaxon : public IFunction1D {
0081       public:
0082         WoodsSaxon(G4double radiusParameter, G4double maximumRadius, G4double diffusenessParameter) :
0083           IFunction1D(0., maximumRadius),
0084           theRadiusParameter(radiusParameter),
0085           theDiffusenessParameter(diffusenessParameter)
0086       {}
0087
0088         inline G4double operator()(const G4double r) const {
0089           return r * r / (1.0 + std::exp((r - theRadiusParameter)/theDiffusenessParameter));
0090         }
0091
0092         inline G4double getRadiusParameter() { return theRadiusParameter; };
0093         inline G4double getDiffusenessParameter() { return theDiffusenessParameter; };
0094
0095         inline void setRadiusParameter(G4double r) { theRadiusParameter = r; };
0096         inline void setDiffusenessParameter(G4double a) { theDiffusenessParameter = a; };
0097
0098       protected:
0099         G4double theRadiusParameter, theDiffusenessParameter;
0100     };
0101
0102   }
0103
0104 }
0105
0106 #endif // G4INCLNDFWOODSSAXON_HH_