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geant4/source/processes/hadronic/models/inclxx/incl_physics/include/G4INCLCrossSections.hh
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2016-06-09 17:01:34 +02:00

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//
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//
// INCL++ intra-nuclear cascade model
// Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
// Davide Mancusi, CEA
// Alain Boudard, CEA
// Sylvie Leray, CEA
// Joseph Cugnon, University of Liege
//
// INCL++ revision: v5.1.8
//
#define INCLXX_IN_GEANT4_MODE 1
#include "globals.hh"
#ifndef G4INCLCrossSections_hh
#define G4INCLCrossSections_hh 1
#include "G4INCLParticle.hh"
#include "G4INCLIAvatar.hh"
#include "G4INCLIChannel.hh"
namespace G4INCL {
class CrossSections {
public:
static G4double elastic(Particle const * const p1, Particle const * const p2);
static G4double total(Particle const * const p1, Particle const * const p2);
static G4double pionNucleon(Particle const * const p1, Particle const * const p2);
static G4double recombination(Particle const * const p1, Particle const * const p2);
static G4double deltaProduction(Particle const * const p1, Particle const * const p2);
/** \brief Calculate the slope of the NN DDXS.
*
* \param energyCM energy in the CM frame, in MeV
* \param iso total isospin of the system
*
* \return the slope of the angular distribution
*/
static G4double calculateNNDiffCrossSection(G4double energyCM, G4int iso);
/** \brief Compute the "interaction distance".
*
* Defined on the basis of the average value of the N-N cross sections at
* the given kinetic energy.
*
* \return the interaction distance
*/
static G4double interactionDistanceNN(const G4double projectileKineticEnergy);
/** \brief Compute the "interaction distance".
*
* Defined on the basis of the average value of the pi-N cross sections at
* the given kinetic energy.
*
* \return the interaction distance
*/
static G4double interactionDistancePiN(const G4double projectileKineticEnergy);
/** \brief The interaction distance for nucleons at 1 GeV.
*
* Used to determine the universe radius at any energy.
*/
static G4double interactionDistanceNN1GeV() {
static G4double answer = CrossSections::interactionDistanceNN(1000.);
return answer;
}
/** \brief The interaction distance for pions at 1 GeV.
*
* Used to determine the universe radius at any energy.
*/
static G4double interactionDistancePiN1GeV() {
static G4double answer = CrossSections::interactionDistancePiN(1000.);
return answer;
}
private:
static G4double elasticNNHighEnergy(const G4double momentum);
static G4double elasticProtonNeutron(const G4double momentum);
static G4double elasticProtonProtonOrNeutronNeutron(const G4double momentum);
static G4double elasticNN(Particle const * const p1, Particle const * const p2);
static G4double elasticNNLegacy(Particle const * const p1, Particle const * const p2);
static G4double deltaProduction(const G4int isospin, const G4double pCM);
static G4double spnPiPlusPHE(const G4double x);
static G4double spnPiMinusPHE(const G4double x);
protected:
CrossSections() {};
~CrossSections() {};
};
}
#endif