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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 #ifndef G4INCLPHASESPACEGENERATOR_HH
39 #define G4INCLPHASESPACEGENERATOR_HH 1
40
41 #include "G4INCLIPhaseSpaceGenerator.hh"
42 #include "G4INCLConfig.hh"
43
44 namespace G4INCL {
45 namespace PhaseSpaceGenerator {
46 /// \brief Generate an event in the CM system
47 void generate(const G4double sqrtS, ParticleList &particles);
48
49 /** \brief Generate a biased event in the CM system
50 *
51 * This method first generates a "flat" event by calling generate(). The
52 * particles are subsequently rotated in such a way that one of them
53 * (identified by the parameter index) is biased towards the collisionAxis
54 * with an exponential distribution of the form
55 * \f[
56 * \exp(B\cdot t)
57 * \f]
58 * where \f$t\f$ is the usual Mandelstam variable. The incoming momentum
59 * is taken to be the momentum of particles[index] at the moment of the
60 * call.
61 *
62 * \param sqrtS total energy in the centre of mass, in MeV
63 * \param particles list of particles for which the event will be generated
64 * (modified on exit)
65 * \param index index of the particle to be biased; all the other particles
66 * will follow
67 * \param slope slope \f$B\f$ of the angular distribution: \f$\exp(Bt)\f$,
68 * in (GeV/c)^(-2)
69 */
70 void generateBiased(const G4double sqrtS, ParticleList &particles, const size_t index, const G4double slope);
71
72 void setPhaseSpaceGenerator(IPhaseSpaceGenerator *g);
73
74 IPhaseSpaceGenerator *getPhaseSpaceGenerator();
75
76 void deletePhaseSpaceGenerator();
77
78 void initialize(Config const * const theConfig);
79 }
80 }
81
82 #endif
83