// // ******************************************************************** // * License and Disclaimer * // * * // * The Geant4 software is copyright of the Copyright Holders of * // * the Geant4 Collaboration. It is provided under the terms and * // * conditions of the Geant4 Software License, included in the file * // * LICENSE and available at http://cern.ch/geant4/license . These * // * include a list of copyright holders. * // * * // * Neither the authors of this software system, nor their employing * // * institutes,nor the agencies providing financial support for this * // * work make any representation or warranty, express or implied, * // * regarding this software system or assume any liability for its * // * use. Please see the license in the file LICENSE and URL above * // * for the full disclaimer and the limitation of liability. * // * * // * This code implementation is the result of the scientific and * // * technical work of the GEANT4 collaboration. * // * By using, copying, modifying or distributing the software (or * // * any work based on the software) you agree to acknowledge its * // * use in resulting scientific publications, and indicate your * // * acceptance of all terms of the Geant4 Software license. * // ******************************************************************** // // 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 // #define INCLXX_IN_GEANT4_MODE 1 #include "globals.hh" /** \file G4INCLClusterDecay.hh * \brief Static class for carrying out cluster decays * * \date 6th July 2011 * \author Davide Mancusi */ #ifndef G4INCLCLUSTERDECAY_HH #define G4INCLCLUSTERDECAY_HH #include "G4INCLCluster.hh" #include "G4INCLParticleTable.hh" namespace G4INCL { /** * Pauli blocking * */ class ClusterDecay { public: /// \brief True if the cluster is stable. static G4bool isStable(Cluster const * const c) { const G4int Z = c->getZ(); const G4int A = c->getA(); return (ParticleTable::clusterDecayMode[Z][A]==ParticleTable::StableCluster); } /** \brief Carries out a cluster decay * * \param c cluster that should decay * \return list of decay products */ static ParticleList decay(Cluster * const c); protected: ClusterDecay() {} ~ClusterDecay() {} private: /** \brief Recursively decay clusters * * \param c cluster that should decay * \param decayProducts decay products are appended to the end of this list */ static void recursiveDecay(Cluster * const c, ParticleList *decayProducts); /// \brief Carries out two-body decays static void twoBodyDecay(Cluster * const c, ParticleTable::ClusterDecayType theDecayMode, ParticleList *decayProducts); /// \brief Carries out three-body decays static void threeBodyDecay(Cluster * const c, ParticleTable::ClusterDecayType theDecayMode, ParticleList *decayProducts); /** \brief Disassembles unbound nuclei using a simple phase-space model * * The decay products are assumed to uniformly populate the momentum space * (the "phase-space" naming is a long-standing but misleading convention). * The generation of the final state is done by rejection, using the * Raubold-Lynch method. Parts of our implementation were "inspired" by * ROOT's TGenPhaseSpace class, which in turn is a translation of CERNLIB's * historical GENBOD routine [CERN report 68-15 (1968)]. The ROOT * implementation is documented at the following URL: * * http://root.cern.ch/root/html/TGenPhaseSpace.html#TGenPhaseSpace */ static void phaseSpaceDecay(Cluster * const c, ParticleTable::ClusterDecayType theDecayMode, ParticleList *decayProducts); }; } #endif // G4INCLCLUSTERDECAY