G4INCLClusterUtils.cc

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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
//
#define INCLXX_IN_GEANT4_MODE 1

#include "globals.hh"

#include "G4INCLClusterUtils.hh"

namespace G4INCL {

  G4double ClusterUtils::getTotalEnergy(const ParticleList &pl) {
    G4double E = 0.0;
    for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
      E += (*i)->getEnergy();
    }
    return E;
  }

  G4double ClusterUtils::getKineticEnergy(const ParticleList &pl) {
    G4double Ekin = 0.0;
    for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
      Ekin += std::sqrt(std::pow((*i)->getEnergy(), 2) - std::pow((*i)->getMass(), 2));;
    }
    return Ekin;
  }

  G4int ClusterUtils::getZ(const ParticleList &pl) {
    G4int Z = 0;
    for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
      Z += (*i)->getZ();
    }
    return Z;
  }

  G4int ClusterUtils::getZ(const ParticleList &pl, Particle *p) {
    return (ClusterUtils::getZ(pl) + p->getZ());
  }

  G4int ClusterUtils::getA(const ParticleList &pl) {
    G4int A = 0;
    for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
      A += (*i)->getA();
    }
    return A;
  }

  G4int ClusterUtils::getA(const ParticleList &pl, Particle *p) {
    return (ClusterUtils::getA(pl) + p->getA());
  }

  ThreeVector ClusterUtils::getNewPositionVector(const ParticleList &pl)
  {
    ThreeVector pos(0.0, 0.0, 0.0);
    G4int A = 1;
    for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
      pos += (pos * A)*ParticleTable::clusterPosFact[A];
      ++A;
    }
    return pos;
  }

  ThreeVector ClusterUtils::getNewPositionVector(const ParticleList &pl, Particle *p)
  {
    ThreeVector pos = ClusterUtils::getNewPositionVector(pl);
    return ((pos * pl.size()) + p->getPosition()) * ParticleTable::clusterPosFact[pl.size() + 1];
  }

  ThreeVector ClusterUtils::getNewPositionVector(const ThreeVector &oldPosition, const ParticleList &pl, Particle *p) {
    ThreeVector newPosition = oldPosition;
    newPosition *= pl.size();
    newPosition += p->getPosition();
    newPosition *= ParticleTable::clusterPosFact[pl.size() + 1];
    return newPosition;
  }

  G4double ClusterUtils::getPhaseSpace(const ThreeVector &clusterPosition,
                     const ThreeVector &clusterMomentum,
                     G4int clusterA,
                     Particle *p) {
    G4double psSpace = (p->getPosition() - clusterPosition).mag2();
    G4double psMomentum = (p->getMomentum() - clusterMomentum).mag2();
    return psSpace * psMomentum * ParticleTable::clusterPosFact2[clusterA + p->getA()];
  }

  G4bool ClusterUtils::isBetterCluster(ParticleList *, ParticleList *) {
    return true;
  }
}