G4VPartonStringModel Class Reference

#include <G4VPartonStringModel.hh>

Inheritance diagram for G4VPartonStringModel:

G4VHighEnergyGenerator G4FTFModel G4QGSModel< ParticipantType >

Public Member Functions

 G4VPartonStringModel (const G4String &modelName="Parton String Model")
virtual ~G4VPartonStringModel ()
void SetFragmentationModel (G4VStringFragmentation *aModel)
G4KineticTrackVector * Scatter (const G4Nucleus &theNucleus, const G4DynamicParticle &thePrimary)
virtual G4V3DNucleus * GetWoundedNucleus () const =0
virtual void ModelDescription (std::ostream &outFile) const

Protected Member Functions

virtual void Init (const G4Nucleus &theNucleus, const G4DynamicParticle &thePrimary)=0
virtual G4ExcitedStringVector * GetStrings ()=0
void SetThisPointer (G4VPartonStringModel *aPointer)
G4bool EnergyAndMomentumCorrector (G4KineticTrackVector *Output, G4LorentzVector &TotalCollisionMomentum)

Detailed Description

Definition at line 51 of file G4VPartonStringModel.hh.

Constructor & Destructor Documentation

G4VPartonStringModel::G4VPartonStringModel ( const G4String &  modelName = "Parton String Model"  ) 

Definition at line 48 of file G4VPartonStringModel.cc.

References G4ShortLivedConstructor::ConstructParticle().

00049     : G4VHighEnergyGenerator(modelName),
00050       stringFragmentationModel(0),
00051       theThis(0)
00052 {
00053 //  Make shure Shotrylived partyicles are constructed.
00054         G4ShortLivedConstructor ShortLived;
00055         ShortLived.ConstructParticle();
00056 }

G4VPartonStringModel::~G4VPartonStringModel (  )  [virtual]

Definition at line 58 of file G4VPartonStringModel.cc.

00059 {
00060 }

Member Function Documentation

G4bool G4VPartonStringModel::EnergyAndMomentumCorrector ( G4KineticTrackVector *  Output,
G4LorentzVector &  TotalCollisionMomentum 
) [protected]

virtual G4ExcitedStringVector* G4VPartonStringModel::GetStrings (  )  [protected, pure virtual]

Implemented in G4FTFModel, G4QGSModel< ParticipantType >, G4QGSModel< G4GammaParticipants >, and G4QGSModel< G4QGSParticipants >.

Referenced by Scatter().

virtual G4V3DNucleus* G4VPartonStringModel::GetWoundedNucleus (  )  const [pure virtual]

Implements G4VHighEnergyGenerator.

Implemented in G4FTFModel, G4QGSModel< ParticipantType >, G4QGSModel< G4GammaParticipants >, and G4QGSModel< G4QGSParticipants >.

Referenced by Scatter().

virtual void G4VPartonStringModel::Init ( const G4Nucleus &  theNucleus,
const G4DynamicParticle &  thePrimary 
) [protected, pure virtual]

Implemented in G4FTFModel, G4QGSModel< ParticipantType >, G4QGSModel< G4GammaParticipants >, and G4QGSModel< G4QGSParticipants >.

Referenced by Scatter().

void G4VPartonStringModel::ModelDescription ( std::ostream &  outFile  )  const [virtual]

Reimplemented from G4VHighEnergyGenerator.

Reimplemented in G4FTFModel, G4QGSModel< ParticipantType >, G4QGSModel< G4GammaParticipants >, and G4QGSModel< G4QGSParticipants >.

Definition at line 171 of file G4VPartonStringModel.cc.

References G4VHighEnergyGenerator::GetModelName().

00172 {
00173         outFile << GetModelName() << " has no description yet.\n";
00174 }

G4KineticTrackVector * G4VPartonStringModel::Scatter ( const G4Nucleus &  theNucleus,
const G4DynamicParticle &  thePrimary 
) [virtual]

Implements G4VHighEnergyGenerator.

Definition at line 62 of file G4VPartonStringModel.cc.

References G4Nucleon::AreYouHit(), G4VStringFragmentation::FragmentStrings(), G4cout, G4endl, G4Nucleon::Get4Momentum(), G4DynamicParticle::Get4Momentum(), G4V3DNucleus::GetCharge(), G4Nucleon::GetDefinition(), G4IonTable::GetIonMass(), G4ParticleTable::GetIonTable(), G4V3DNucleus::GetMassNumber(), G4DynamicParticle::GetMomentum(), G4V3DNucleus::GetNextNucleon(), G4ParticleTable::GetParticleTable(), GetStrings(), GetWoundedNucleus(), Init(), G4Proton::Proton(), G4DynamicParticle::Set4Momentum(), and G4V3DNucleus::StartLoop().

00064 {  
00065   G4ExcitedStringVector * strings = NULL;
00066 
00067   G4DynamicParticle thePrimary=aPrimary;
00068   
00069   G4LorentzRotation toZ;
00070   G4LorentzVector Ptmp=thePrimary.Get4Momentum();
00071   toZ.rotateZ(-1*Ptmp.phi());
00072   toZ.rotateY(-1*Ptmp.theta());
00073   thePrimary.Set4Momentum(toZ*Ptmp);
00074   G4LorentzRotation toLab(toZ.inverse());
00075 
00076   G4int attempts = 0, maxAttempts=20;
00077   while ( strings  == NULL )
00078   {
00079         if (attempts++ > maxAttempts ) 
00080         {
00081                 throw G4HadronicException(__FILE__, __LINE__, "G4VPartonStringModel::Scatter(): fails to generate strings");
00082         }
00083 
00084         theThis->Init(theNucleus,thePrimary);
00085 
00086         strings = GetStrings();
00087   }
00088   
00089   G4double stringEnergy(0);
00090   G4LorentzVector SumStringMom(0.,0.,0.,0.);
00091 
00092   for ( unsigned int astring=0; astring < strings->size(); astring++)
00093   {
00094 //    rotate string to lab frame, models have it aligned to z
00095     stringEnergy += (*strings)[astring]->GetLeftParton()->Get4Momentum().t();
00096     stringEnergy += (*strings)[astring]->GetRightParton()->Get4Momentum().t();
00097     (*strings)[astring]->LorentzRotate(toLab);
00098     SumStringMom+=(*strings)[astring]->Get4Momentum();
00099   }
00100 
00101   G4double InvMass=SumStringMom.mag();   
00102 
00103 //#define debug_PartonStringModel
00104 #ifdef debug_PartonStringModel
00105 
00106      G4V3DNucleus * fancynucleus=theThis->GetWoundedNucleus();
00107   
00108        // loop over wounded nucleus
00109      G4int hits(0), charged_hits(0);
00110      G4ThreeVector hitNucleonMomentum(0.,0.,0.);
00111      G4Nucleon * theCurrentNucleon = fancynucleus->StartLoop() ? fancynucleus->GetNextNucleon() : NULL;
00112      while( theCurrentNucleon )
00113      {
00114        if(theCurrentNucleon->AreYouHit()) 
00115        {
00116          hits++;
00117          hitNucleonMomentum += theCurrentNucleon->Get4Momentum().vect();
00118          if ( theCurrentNucleon->GetDefinition() == G4Proton::Proton() )  ++charged_hits;
00119        }
00120        theCurrentNucleon = fancynucleus->GetNextNucleon();
00121      }
00122      
00123      G4int initialZ=fancynucleus->GetCharge();
00124      G4int initialA=fancynucleus->GetMassNumber();
00125      G4double initial_mass=G4ParticleTable::GetParticleTable()->GetIonTable()->GetIonMass(initialZ,initialA);
00126      G4double final_mass = G4ParticleTable::GetParticleTable()->GetIonTable()->GetIonMass(initialZ-charged_hits, initialA-hits);
00127      G4cout << "G4VPSM: strE, hit nucleons, Primary, SumStringE, nucleus intial, nucleus final, excitation estimate "
00128             << stringEnergy << " "    << hits << ", " << Ptmp.e() << ", "<< SumStringMom.e() << ", "
00129                 << initial_mass<< ", " << final_mass<< ", "  << Ptmp.e() + initial_mass - final_mass - stringEnergy  << G4endl;
00130      G4cout << "momentum balance " <<  thePrimary.GetMomentum() + hitNucleonMomentum - SumStringMom.vect()<< G4endl;
00131 #endif
00132 
00133 //  Fragment strings
00134 
00135   G4KineticTrackVector * theResult = 0;
00136   G4double SumMass(0.); 
00137   attempts = 0; 
00138   maxAttempts=100;
00139   do 
00140   {         
00141    attempts++;   
00142    if(theResult != 0)
00143    {
00144     std::for_each(theResult->begin(), theResult->end(), DeleteKineticTrack());
00145     delete theResult;
00146    }
00147    theResult = stringFragmentationModel->FragmentStrings(strings);
00148    if(attempts > maxAttempts ) break;
00149 
00150     //G4cout<<"G4endl<<"G4VPartonStringModel:: Final Result, Size "<<theResult->size()<<G4endl;
00151 
00152    SumMass=0.;
00153     //G4LorentzVector SumP(0.,0.,0.,0.);
00154    for ( unsigned int i=0; i < theResult->size(); i++)
00155    {
00156     SumMass+=(*theResult)[i]->GetDefinition()->GetPDGMass();
00157      //SumP+=(*theResult)[i]->Get4Momentum();
00158      //G4cout<<i<<" : "<<(*theResult)[i]->GetDefinition()->GetParticleName();
00159      //G4cout<<"p= " << (*theResult)[i]->Get4Momentum()<<" m= "<<(*theResult)[i]->Get4Momentum().mag()<<G4endl;
00160    }
00161 
00162      //G4cout<<"SumP "<<SumP<<G4endl;
00163   } while(SumMass > InvMass);
00164 
00165   std::for_each(strings->begin(), strings->end(), DeleteString() );
00166   delete strings;
00167 
00168   return theResult;
00169 }

void G4VPartonStringModel::SetFragmentationModel ( G4VStringFragmentation *  aModel  )  [inline]

Definition at line 86 of file G4VPartonStringModel.hh.

Referenced by G4MiscQGSCBuilder::Build(), G4ElectroNuclearBuilder::Build(), G4BertiniElectroNuclearBuilder::Build(), G4QGSBuilder::BuildModel(), G4FTFBuilder::BuildModel(), G4ElectroNuclearReaction::G4ElectroNuclearReaction(), G4ElectroVDNuclearModel::G4ElectroVDNuclearModel(), G4FTFBinaryKaonBuilder::G4FTFBinaryKaonBuilder(), G4FTFBinaryNeutronBuilder::G4FTFBinaryNeutronBuilder(), G4FTFBinaryPiKBuilder::G4FTFBinaryPiKBuilder(), G4FTFBinaryPionBuilder::G4FTFBinaryPionBuilder(), G4FTFBinaryProtonBuilder::G4FTFBinaryProtonBuilder(), G4FTFCNeutronBuilder::G4FTFCNeutronBuilder(), G4FTFCPiKBuilder::G4FTFCPiKBuilder(), G4FTFCProtonBuilder::G4FTFCProtonBuilder(), G4FTFPAntiBarionBuilder::G4FTFPAntiBarionBuilder(), G4FTFPNeutronBuilder::G4FTFPNeutronBuilder(), G4FTFPPiKBuilder::G4FTFPPiKBuilder(), G4FTFPProtonBuilder::G4FTFPProtonBuilder(), G4HadronicAbsorptionFritiof::G4HadronicAbsorptionFritiof(), G4HyperonFTFPBuilder::G4HyperonFTFPBuilder(), G4MuonVDNuclearModel::G4MuonVDNuclearModel(), G4QGSBinaryNeutronBuilder::G4QGSBinaryNeutronBuilder(), G4QGSBinaryPiKBuilder::G4QGSBinaryPiKBuilder(), G4QGSBinaryProtonBuilder::G4QGSBinaryProtonBuilder(), G4QGSC_CHIPSNeutronBuilder::G4QGSC_CHIPSNeutronBuilder(), G4QGSC_CHIPSPiKBuilder::G4QGSC_CHIPSPiKBuilder(), G4QGSC_CHIPSProtonBuilder::G4QGSC_CHIPSProtonBuilder(), G4QGSC_QGSCNeutronBuilder::G4QGSC_QGSCNeutronBuilder(), G4QGSC_QGSCPiKBuilder::G4QGSC_QGSCPiKBuilder(), G4QGSC_QGSCProtonBuilder::G4QGSC_QGSCProtonBuilder(), G4QGSCEflowNeutronBuilder::G4QGSCEflowNeutronBuilder(), G4QGSCEflowPiKBuilder::G4QGSCEflowPiKBuilder(), G4QGSCEflowProtonBuilder::G4QGSCEflowProtonBuilder(), G4QGSCNeutronBuilder::G4QGSCNeutronBuilder(), G4QGSCPiKBuilder::G4QGSCPiKBuilder(), G4QGSCProtonBuilder::G4QGSCProtonBuilder(), G4QGSPNeutronBuilder::G4QGSPNeutronBuilder(), G4QGSPPiKBuilder::G4QGSPPiKBuilder(), G4QGSPPionBuilder::G4QGSPPionBuilder(), G4QGSPProtonBuilder::G4QGSPProtonBuilder(), and TheoModelFactory< C, S, F >::New().

00087 {
00088   stringFragmentationModel = aModel;
00089 }

void G4VPartonStringModel::SetThisPointer ( G4VPartonStringModel *  aPointer  )  [inline, protected]

Definition at line 92 of file G4VPartonStringModel.hh.

Referenced by G4FTFModel::G4FTFModel(), G4QGSModel< ParticipantType >::G4QGSModel(), and G4QGSModel< ParticipantType >::operator=().

00093 {
00094         theThis=aPointer;
00095 }

The documentation for this class was generated from the following files:
Generated on Mon May 27 17:53:52 2013 for Geant4 by  doxygen 1.4.7