include/Geant4/G4QGSModel.icc

0001 //
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0025 //
0026 //****************************************************************************
0027
0028 template<class ParticipantType>
0029 G4QGSModel<ParticipantType>::G4QGSModel()
0030 {
0031   SetEnergyMomentumCheckLevels(2*CLHEP::perCent, 150*CLHEP::MeV);
0032 }
0033
0034 template<class ParticipantType>
0035 G4QGSModel<ParticipantType>::~G4QGSModel()
0036 {}
0037
0038 template<class ParticipantType>
0039 void G4QGSModel<ParticipantType>::Init(const G4Nucleus & aNucleus,
0040                                        const G4DynamicParticle & aProjectile)
0041 {
0042   // It is assumed that target nucleus is at rest.
0043   theParticipants.Init(aNucleus.GetA_asInt(),aNucleus.GetZ_asInt());
0044
0045   G4LorentzVector Mom = aProjectile.Get4Momentum();
0046
0047   G4ReactionProduct theProjectile;
0048   theProjectile.SetDefinition(aProjectile.GetDefinition());
0049   theProjectile.SetTotalEnergy(Mom.e());
0050   theProjectile.SetMomentum(Mom.vect());
0051
0052   // Creation of strings and nuclear remnant
0053   theParticipants.BuildInteractions(theProjectile);
0054 }
0055
0056 template<class ParticipantType>
0057 G4ExcitedStringVector * G4QGSModel<ParticipantType>::GetStrings()
0058 {
0059   // The strings are produced at theParticipants.BuildInteractions(theProjectile)
0060
0061   G4PartonPair* aPair;
0062   G4ExcitedStringVector* theStrings = new G4ExcitedStringVector;
0063   G4ExcitedString * aString;
0064   while( (aPair = theParticipants.GetNextPartonPair()) )  /* Loop checking, 07.08.2015, A.Ribon */
0065   {
0066     if (aPair->GetCollisionType() == G4PartonPair::DIFFRACTIVE)
0067     {
0068       aString = theDiffractiveStringBuilder.BuildString(aPair);
0069     }
0070     else
0071     {
0072       aString = theSoftStringBuilder.BuildString(aPair);
0073     }
0074
0075     //    aString->Boost(theCurrentVelocity);
0076     theStrings->push_back(aString);
0077     delete aPair;
0078   }
0079
0080   return theStrings;
0081 }
0082
0083 template<class ParticipantType>
0084 G4V3DNucleus* G4QGSModel<ParticipantType>::GetWoundedNucleus() const
0085 {
0086   return theParticipants.GetWoundedNucleus();
0087 }
0088
0089 template<class ParticipantType>
0090 G4V3DNucleus* G4QGSModel<ParticipantType>::GetProjectileNucleus() const
0091 {
0092   return nullptr;
0093 }
0094
0095 template<class ParticipantType>
0096 void G4QGSModel<ParticipantType>::ModelDescription(std::ostream& outFile) const
0097 {
0098   outFile << "The Quark-Gluon String (QGS) model simulates the interaction\n"
0099           << "of protons, neutrons, pions and kaons with nuclei in the\n"
0100           << "approximate energy range 20 GeV to 50 TeV. The model handles\n"
0101           << "the selection of collision partners, splitting of the nucleons\n"
0102           << "into quarks and di-quarks, the formation and excitation of\n"
0103           << "quark-gluon strings, string hadronization and diffractive dissociation.\n";
0104 }
0105 //****************************************************************************
0106