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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35
36 #include "globals.hh"
37
38 /** \file G4INCLNDFGaussian.hh
39 * \brief Class for Gaussian density
40 *
41 * \date 16 July 2012
42 * \author Davide Mancusi
43 */
44
45 #ifndef G4INCLNDFGAUSSIAN_HH_
46 #define G4INCLNDFGAUSSIAN_HH_
47
48 #include "G4INCLIFunction1D.hh"
49 #include <cmath>
50
51 namespace G4INCL {
52
53 namespace NuclearDensityFunctions {
54
55 class GaussianRP : public IFunction1D {
56 public:
57 GaussianRP(G4double maximumRadius, G4double standardDeviation) :
58 IFunction1D(0., maximumRadius),
59 theStandardDeviation(standardDeviation)
60 {}
61
62 inline G4double operator()(const G4double r) const {
63 const G4double arg = std::pow((r/theStandardDeviation),2);
64 return r*r*arg*std::exp(-arg/2.0);
65 }
66
67 protected:
68 G4double theStandardDeviation;
69 };
70
71 class Gaussian : public IFunction1D {
72 public:
73 Gaussian(G4double maximumRadius, G4double standardDeviation) :
74 IFunction1D(0., maximumRadius),
75 theStandardDeviation(standardDeviation),
76 normalisation(std::sqrt(2./Math::pi)/theStandardDeviation)
77 {}
78
79 inline G4double operator()(const G4double r) const {
80 const G4double arg = std::pow((r/theStandardDeviation),2);
81 return normalisation * arg * std::exp(-arg/2.0);
82 }
83
84 protected:
85 G4double theStandardDeviation;
86 const G4double normalisation;
87 };
88
89 }
90
91 }
92
93 #endif // G4INCLNDFGAUSSIAN_HH_
94
95