G4HadProjectile.cc

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#include "G4HadProjectile.hh"
#include "G4Track.hh"
#include "G4DynamicParticle.hh"
 
G4HadProjectile::G4HadProjectile() 
  : theMat(nullptr),theTime(0.0),theBoundEnergy(0.0)
{
  theDef = nullptr;
  theMass = 0.0;
  theKinEnergy = 0.0;
  theDirection.set(0.,0.,0.);
  theMom.set(0.,0.,0.,0.);
}
 
G4HadProjectile::G4HadProjectile(const G4Track &aT) 
{
  Initialise(aT);
}
 
G4HadProjectile::G4HadProjectile(const G4DynamicParticle & dp) 
  : theMat(nullptr),theTime(0.0),theBoundEnergy(0.0)
{
  InitialiseLocal(&dp);
}
 
G4HadProjectile::~G4HadProjectile()
{}
 
void G4HadProjectile::Initialise(const G4Track &aT)
{
  theMat = aT.GetMaterial();
  //VI time of interaction starts from zero
  //   not global time of a track
  theTime = 0.0;
  theBoundEnergy = 0.0;
  
  InitialiseLocal(aT.GetDynamicParticle());
}
 
void G4HadProjectile::InitialiseLocal(const G4DynamicParticle* dp)
{
  theDef = dp->GetDefinition();
  theDirection = dp->GetMomentumDirection();
  theMass = theDef->GetPDGMass();
  theKinEnergy = dp->GetKineticEnergy();
 
  G4LorentzVector theOrgMom = dp->Get4Momentum();
  G4LorentzRotation toZ;
  toZ.rotateZ(-theOrgMom.phi());
  toZ.rotateY(-theOrgMom.theta());
  toLabFrame = toZ.inverse();
 
  theMom.set(0.,0.,std::sqrt(theKinEnergy*(theKinEnergy + 2.0*theMass)),
             theMass+theKinEnergy);
}