#include <G4TauNeutrinoNucleusProcess.hh>

Inheritance diagram for G4TauNeutrinoNucleusProcess:

Public Member Functions
	G4TauNeutrinoNucleusProcess (const G4String &anEnvelopeName, const G4String &procName="tau-neutrino-nucleus")

	~G4TauNeutrinoNucleusProcess () override=default

G4double	PostStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition) override

G4double	GetMeanFreePath (const G4Track &aTrack, G4double, G4ForceCondition *) override

G4VParticleChange *	PostStepDoIt (const G4Track &aTrack, const G4Step &aStep) override

void	SetLowestEnergy (G4double)

void	ProcessDescription (std::ostream &outFile) const override

void	SetBiasingFactors (G4double bfCc, G4double bfNc)

void	SetBiasingFactor (G4double bf)

G4TauNeutrinoNucleusProcess &	operator= (const G4TauNeutrinoNucleusProcess &right)=delete

	G4TauNeutrinoNucleusProcess (const G4TauNeutrinoNucleusProcess &)=delete

Public Member Functions inherited from G4HadronicProcess
	G4HadronicProcess (const G4String &processName="Hadronic", G4ProcessType procType=fHadronic)

	G4HadronicProcess (const G4String &processName, G4HadronicProcessType subType)

	~G4HadronicProcess () override

void	RegisterMe (G4HadronicInteraction *a)

G4double	GetElementCrossSection (const G4DynamicParticle part, const G4Element elm, const G4Material *mat=nullptr)

G4double	GetMicroscopicCrossSection (const G4DynamicParticle part, const G4Element elm, const G4Material *mat=nullptr)

void	StartTracking (G4Track *track) override

void	PreparePhysicsTable (const G4ParticleDefinition &) override

void	BuildPhysicsTable (const G4ParticleDefinition &) override

void	DumpPhysicsTable (const G4ParticleDefinition &p)

void	AddDataSet (G4VCrossSectionDataSet *aDataSet)

std::vector< G4HadronicInteraction * > &	GetHadronicInteractionList ()

G4HadronicInteraction *	GetHadronicModel (const G4String &)

G4HadronicInteraction *	GetHadronicInteraction () const

const G4Nucleus *	GetTargetNucleus () const

G4Nucleus *	GetTargetNucleusPointer ()

const G4Isotope *	GetTargetIsotope ()

G4double	ComputeCrossSection (const G4ParticleDefinition , const G4Material , const G4double kinEnergy)

G4HadXSType	CrossSectionType () const

void	SetCrossSectionType (G4HadXSType val)

void	BiasCrossSectionByFactor (G4double aScale)

void	MultiplyCrossSectionBy (G4double factor)

G4double	CrossSectionFactor () const

void	SetIntegral (G4bool val)

void	SetEpReportLevel (G4int level)

void	SetEnergyMomentumCheckLevels (G4double relativeLevel, G4double absoluteLevel)

std::pair< G4double, G4double >	GetEnergyMomentumCheckLevels () const

G4CrossSectionDataStore *	GetCrossSectionDataStore ()

std::vector< G4TwoPeaksHadXS * > *	TwoPeaksXS () const

std::vector< G4double > *	EnergyOfCrossSectionMax () const

G4HadronicProcess &	operator= (const G4HadronicProcess &right)=delete

	G4HadronicProcess (const G4HadronicProcess &)=delete

Public Member Functions inherited from G4VDiscreteProcess
	G4VDiscreteProcess (const G4String &aName, G4ProcessType aType=fNotDefined)

	G4VDiscreteProcess (G4VDiscreteProcess &)

virtual	~G4VDiscreteProcess ()

G4VDiscreteProcess &	operator= (const G4VDiscreteProcess &)=delete

virtual G4double	AlongStepGetPhysicalInteractionLength (const G4Track &, G4double, G4double, G4double &, G4GPILSelection *)

virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)

virtual G4VParticleChange *	AtRestDoIt (const G4Track &, const G4Step &)

virtual G4VParticleChange *	AlongStepDoIt (const G4Track &, const G4Step &)

virtual G4double	GetCrossSection (const G4double, const G4MaterialCutsCouple *)

virtual G4double	MinPrimaryEnergy (const G4ParticleDefinition , const G4Material )

Public Member Functions inherited from G4VProcess
	G4VProcess (const G4String &aName="NoName", G4ProcessType aType=fNotDefined)

	G4VProcess (const G4VProcess &right)

virtual	~G4VProcess ()

G4VProcess &	operator= (const G4VProcess &)=delete

G4bool	operator== (const G4VProcess &right) const

G4bool	operator!= (const G4VProcess &right) const

G4double	GetCurrentInteractionLength () const

void	SetPILfactor (G4double value)

G4double	GetPILfactor () const

G4double	AlongStepGPIL (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &proposedSafety, G4GPILSelection *selection)

G4double	AtRestGPIL (const G4Track &track, G4ForceCondition *condition)

G4double	PostStepGPIL (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)

virtual G4bool	IsApplicable (const G4ParticleDefinition &)

virtual G4bool	StorePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)

virtual G4bool	RetrievePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)

const G4String &	GetPhysicsTableFileName (const G4ParticleDefinition *, const G4String &directory, const G4String &tableName, G4bool ascii=false)

const G4String &	GetProcessName () const

G4ProcessType	GetProcessType () const

void	SetProcessType (G4ProcessType)

G4int	GetProcessSubType () const

void	SetProcessSubType (G4int)

virtual const G4VProcess *	GetCreatorProcess () const

virtual void	EndTracking ()

virtual void	SetProcessManager (const G4ProcessManager *)

virtual const G4ProcessManager *	GetProcessManager ()

virtual void	ResetNumberOfInteractionLengthLeft ()

G4double	GetNumberOfInteractionLengthLeft () const

G4double	GetTotalNumberOfInteractionLengthTraversed () const

G4bool	isAtRestDoItIsEnabled () const

G4bool	isAlongStepDoItIsEnabled () const

G4bool	isPostStepDoItIsEnabled () const

virtual void	DumpInfo () const

void	SetVerboseLevel (G4int value)

G4int	GetVerboseLevel () const

virtual void	SetMasterProcess (G4VProcess *masterP)

const G4VProcess *	GetMasterProcess () const

virtual void	BuildWorkerPhysicsTable (const G4ParticleDefinition &part)

virtual void	PrepareWorkerPhysicsTable (const G4ParticleDefinition &)

Additional Inherited Members
Static Public Member Functions inherited from G4VProcess
static const G4String &	GetProcessTypeName (G4ProcessType)

Protected Member Functions inherited from G4HadronicProcess
G4HadronicInteraction *	ChooseHadronicInteraction (const G4HadProjectile &aHadProjectile, G4Nucleus &aTargetNucleus, const G4Material aMaterial, const G4Element anElement)

G4double	GetLastCrossSection ()

void	FillResult (G4HadFinalState *aR, const G4Track &aT)

void	DumpState (const G4Track &, const G4String &, G4ExceptionDescription &)

G4HadFinalState *	CheckResult (const G4HadProjectile &thePro, const G4Nucleus &targetNucleus, G4HadFinalState *result)

void	CheckEnergyMomentumConservation (const G4Track &, const G4Nucleus &)

Protected Member Functions inherited from G4VDiscreteProcess
Protected Member Functions inherited from G4VProcess
void	SubtractNumberOfInteractionLengthLeft (G4double prevStepSize)

void	ClearNumberOfInteractionLengthLeft ()

Protected Attributes inherited from G4HadronicProcess
G4HadProjectile	thePro

G4ParticleChange *	theTotalResult

G4CrossSectionDataStore *	theCrossSectionDataStore

G4double	fWeight = 1.0

G4double	aScaleFactor = 1.0

G4double	theLastCrossSection = 0.0

G4double	mfpKinEnergy = DBL_MAX

G4int	epReportLevel = 0

G4HadXSType	fXSType = fHadNoIntegral

Protected Attributes inherited from G4VProcess
const G4ProcessManager *	aProcessManager = nullptr

G4VParticleChange *	pParticleChange = nullptr

G4ParticleChange	aParticleChange

G4double	theNumberOfInteractionLengthLeft = -1.0

G4double	currentInteractionLength = -1.0

G4double	theInitialNumberOfInteractionLength = -1.0

G4String	theProcessName

G4String	thePhysicsTableFileName

G4ProcessType	theProcessType = fNotDefined

G4int	theProcessSubType = -1

G4double	thePILfactor = 1.0

G4int	verboseLevel = 0

G4bool	enableAtRestDoIt = true

G4bool	enableAlongStepDoIt = true

G4bool	enablePostStepDoIt = true

Detailed Description

Definition at line 48 of file G4TauNeutrinoNucleusProcess.hh.

Constructor & Destructor Documentation

◆ G4TauNeutrinoNucleusProcess() [1/2]

G4TauNeutrinoNucleusProcess::G4TauNeutrinoNucleusProcess	(	const G4String &	anEnvelopeName,
		const G4String &	procName = "tau-neutrino-nucleus" )

Definition at line 62 of file G4TauNeutrinoNucleusProcess.cc.

  : G4HadronicProcess( pName, fNuNucleus )
{
  lowestEnergy = 1.*keV;
  fEnvelopeName = anEnvelopeName;
  fTotXsc = new G4TauNeutrinoNucleusTotXsc();
  safetyHelper = G4TransportationManager::GetTransportationManager()->GetSafetyHelper();
  safetyHelper->InitialiseHelper();
}

◆ ~G4TauNeutrinoNucleusProcess()

G4TauNeutrinoNucleusProcess::~G4TauNeutrinoNucleusProcess ( )

overridedefault

◆ G4TauNeutrinoNucleusProcess() [2/2]

G4TauNeutrinoNucleusProcess::G4TauNeutrinoNucleusProcess ( const G4TauNeutrinoNucleusProcess & )

delete

Member Function Documentation

◆ GetMeanFreePath()

G4double G4TauNeutrinoNucleusProcess::GetMeanFreePath	(	const G4Track &	aTrack,
		G4double	,
		G4ForceCondition *	)

overridevirtual

Reimplemented from G4HadronicProcess.

Definition at line 100 of file G4TauNeutrinoNucleusProcess.cc.

{
  //G4cout << "GetMeanFreePath " << aTrack.GetDefinition()->GetParticleName()
  //     << " Ekin= " << aTrack.GetKineticEnergy() << G4endl;
  G4String rName = aTrack.GetStep()->GetPreStepPoint()->GetPhysicalVolume()->GetLogicalVolume()->GetRegion()->GetName();
  G4double totxsc =
    GetCrossSectionDataStore()->ComputeCrossSection(aTrack.GetDynamicParticle(),
                            aTrack.GetMaterial());
 
  if( rName == fEnvelopeName )
  {
    totxsc *= fNuNuclTotXscBias;
  }
  G4double res = (totxsc>0.0) ? 1.0/totxsc : DBL_MAX;
  //G4cout << "         xsection= " << totxsc << G4endl;
  return res;
}

◆ operator=()

G4TauNeutrinoNucleusProcess & G4TauNeutrinoNucleusProcess::operator= ( const G4TauNeutrinoNucleusProcess & right )

delete

◆ PostStepDoIt()

G4VParticleChange * G4TauNeutrinoNucleusProcess::PostStepDoIt	(	const G4Track &	aTrack,
		const G4Step &	aStep )

overridevirtual

! is not needed for models inheriting G4TauNeutrinoNucleus

Reimplemented from G4HadronicProcess.

Definition at line 133 of file G4TauNeutrinoNucleusProcess.cc.

{
  // track.GetVolume()->GetLogicalVolume()->GetName()
  // if( track.GetVolume()->GetLogicalVolume() != fEnvelope )
 
  G4String rName = track.GetStep()->GetPreStepPoint()->GetPhysicalVolume()->GetLogicalVolume()->GetRegion()->GetName();
 
  if( rName != fEnvelopeName ) 
  {
    if( verboseLevel > 0 )
    {
      G4cout<<"Go out from G4TauNeutrinoNucleusProcess::PostStepDoIt: wrong volume "<<G4endl;
    }
    return G4VDiscreteProcess::PostStepDoIt( track,  step );
  }
  theTotalResult->Clear();
  theTotalResult->Initialize(track);
  G4double weight = track.GetWeight();
  theTotalResult->ProposeWeight(weight);
 
  if( track.GetTrackStatus() != fAlive ) 
  { 
    return theTotalResult; 
  }
  // Next check for illegal track status
  //
  if (track.GetTrackStatus() != fAlive && 
      track.GetTrackStatus() != fSuspend) 
  {
    if (track.GetTrackStatus() == fStopAndKill ||
        track.GetTrackStatus() == fKillTrackAndSecondaries ||
        track.GetTrackStatus() == fPostponeToNextEvent) 
    {
      G4ExceptionDescription ed;
      ed << "G4TauNeutrinoNucleusProcess: track in unusable state - "
     << track.GetTrackStatus() << G4endl;
      ed << "G4TauNeutrinoNucleusProcess: returning unchanged track " << G4endl;
      DumpState(track,"PostStepDoIt",ed);
      G4Exception("G4TauNeutrinoNucleusProcess::PostStepDoIt", "had004", JustWarning, ed);
    }
    // No warning for fStopButAlive which is a legal status here
    return theTotalResult;
  }
    
  // For elastic scattering, _any_ result is considered an interaction
  ClearNumberOfInteractionLengthLeft();
 
  G4double kineticEnergy = track.GetKineticEnergy();
  const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
  const G4ParticleDefinition* part = dynParticle->GetDefinition();
  const G4String pName = part->GetParticleName();
 
  // NOTE:  Very low energy scatters were causing numerical (FPE) errors
  //        in earlier releases; these limits have not been changed since.
 
  if ( kineticEnergy <= lowestEnergy )   return theTotalResult;
 
  const G4Material* material = track.GetMaterial();
  G4Nucleus* targNucleus = GetTargetNucleusPointer();
 
  //////////////// uniform random spread of the neutrino interaction point ////////////
 
  const G4StepPoint* pPostStepPoint  = step.GetPostStepPoint();
  const G4DynamicParticle* aParticle = track.GetDynamicParticle();
  G4ThreeVector      position  = pPostStepPoint->GetPosition(), newPosition=position;
  G4ParticleMomentum direction = aParticle->GetMomentumDirection();
  
  if( fNuNuclCcBias > 1.0 ||  fNuNuclNcBias > 1.0) // = true, if fBiasingfactor != 1., i.e. xsc is biased
  {
    const G4RotationMatrix* rotM = pPostStepPoint->GetTouchable()->GetRotation();
    G4ThreeVector transl = pPostStepPoint->GetTouchable()->GetTranslation();
    G4AffineTransform transform = G4AffineTransform(rotM,transl);
    transform.Invert();
 
    G4ThreeVector localP = transform.TransformPoint(position);
    G4ThreeVector localV = transform.TransformAxis(direction);
 
    G4double forward  = track.GetVolume()->GetLogicalVolume()->GetSolid()->DistanceToOut(localP,  localV);
    G4double backward = track.GetVolume()->GetLogicalVolume()->GetSolid()->DistanceToOut(localP, -localV);
 
    G4double distance = forward+backward;
 
    // G4cout<<distance/cm<<", ";
 
    // uniform sampling of nu-e interaction point 
    // along neutrino direction in current volume
 
    G4double range = -backward+G4UniformRand()*distance;
 
    newPosition = position + range*direction;
 
    safetyHelper->ReLocateWithinVolume(newPosition);
 
    theTotalResult->ProposePosition(newPosition); // G4Exception : GeomNav1002
  }
  G4HadProjectile theProj( track );
  G4HadronicInteraction* hadi = nullptr;
  G4HadFinalState* result = nullptr;
  const G4Element* elm =  GetCrossSectionDataStore()->SampleZandA(dynParticle, material,
                                                    *targNucleus);
  G4int ZZ = elm->GetZasInt();
  fTotXsc->GetElementCrossSection(dynParticle, ZZ, material);
  G4double ccTotRatio = fTotXsc->GetCcTotRatio();
 
  if( G4UniformRand() < ccTotRatio )  // Cc-model
  {
    // Initialize the hadronic projectile from the track
    thePro.Initialise(track);
 
    if (pName == "nu_tau" ) hadi = (GetHadronicInteractionList())[0];
    else                    hadi = (GetHadronicInteractionList())[2];
 
    result = hadi->ApplyYourself( thePro, *targNucleus);
   
    result->SetTrafoToLab(thePro.GetTrafoToLab());
 
    ClearNumberOfInteractionLengthLeft();
 
    FillResult(result, track);
  }
  else  // Nc-model                            
  {
 
    if (pName == "nu_tau" ) hadi = (GetHadronicInteractionList())[1]; 
    else                    hadi = (GetHadronicInteractionList())[3];
 
    size_t idx = track.GetMaterialCutsCouple()->GetIndex();
 
    G4double tcut = (*(G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3)))[idx];
 
    hadi->SetRecoilEnergyThreshold(tcut);
 
    if( verboseLevel > 1 ) 
    {
    G4cout << "G4TauNeutrinoNucleusProcess::PostStepDoIt for " 
       << part->GetParticleName()
       << " in " << material->GetName() 
       << " Target Z= " << targNucleus->GetZ_asInt() 
       << " A= " << targNucleus->GetA_asInt() << G4endl; 
    }
    try
    {
      result = hadi->ApplyYourself( theProj, *targNucleus);
    }
    catch(G4HadronicException & aR)
    {
      G4ExceptionDescription ed;
      aR.Report(ed);
      ed << "Call for " << hadi->GetModelName() << G4endl;
      ed << "  Z= " 
     << targNucleus->GetZ_asInt() 
     << "  A= " << targNucleus->GetA_asInt() << G4endl;
      DumpState(track,"ApplyYourself",ed);
      ed << " ApplyYourself failed" << G4endl;
      G4Exception("G4TauNeutrinoNucleusProcess::PostStepDoIt", "had006", 
          FatalException, ed);
    }
    // directions
 
    G4ThreeVector indir = track.GetMomentumDirection();
    G4double phi = CLHEP::twopi*G4UniformRand();
    G4ThreeVector it(0., 0., 1.);
    G4ThreeVector outdir = result->GetMomentumChange();
 
    if(verboseLevel>1) 
    {
      G4cout << "Efin= " << result->GetEnergyChange()
       << " de= " << result->GetLocalEnergyDeposit()
       << " nsec= " << result->GetNumberOfSecondaries()
       << " dir= " << outdir
       << G4endl;
    }
    // energies 
 
    G4double edep = result->GetLocalEnergyDeposit();
    G4double efinal = result->GetEnergyChange();
 
    if(efinal < 0.0) { efinal = 0.0; }
    if(edep < 0.0)   { edep = 0.0; }
 
    // NOTE:  Very low energy scatters were causing numerical (FPE) errors
    //        in earlier releases; these limits have not been changed since.
 
    if(efinal <= lowestEnergy) 
    {
      edep += efinal;
      efinal = 0.0;
    }
    // primary change
 
    theTotalResult->ProposeEnergy(efinal);
 
    G4TrackStatus status = track.GetTrackStatus();
 
    if(efinal > 0.0) 
    {
      outdir.rotate(phi, it);
      outdir.rotateUz(indir);
      theTotalResult->ProposeMomentumDirection(outdir);
    } 
    else 
    {
      if( part->GetProcessManager()->GetAtRestProcessVector()->size() > 0)
      { 
        status = fStopButAlive; 
      }
      else 
      { 
        status = fStopAndKill; 
      }
      theTotalResult->ProposeTrackStatus(status);
    }
    //G4cout << "Efinal= " << efinal << "  TrackStatus= " << status << G4endl;
 
    theTotalResult->SetNumberOfSecondaries(0);
 
    // recoil
 
    if( result->GetNumberOfSecondaries() > 0 ) 
    {
      G4DynamicParticle* p = result->GetSecondary(0)->GetParticle();
 
      if(p->GetKineticEnergy() > tcut) 
      {
        theTotalResult->SetNumberOfSecondaries(1);
        G4ThreeVector pdir = p->GetMomentumDirection();
 
        // G4cout << "recoil " << pdir << G4endl;
        //!! is not needed for models inheriting G4TauNeutrinoNucleus
 
        pdir.rotate(phi, it);
        pdir.rotateUz(indir);
 
        // G4cout << "recoil rotated " << pdir << G4endl;
 
        p->SetMomentumDirection(pdir);
 
        // in elastic scattering time and weight are not changed
 
        G4Track* t = new G4Track(p, track.GetGlobalTime(), 
                   track.GetPosition());
        t->SetWeight(weight);
        t->SetTouchableHandle(track.GetTouchableHandle());
        theTotalResult->AddSecondary(t);
      } 
      else 
      {
        edep += p->GetKineticEnergy();
        delete p;
      }
    }
    theTotalResult->ProposeLocalEnergyDeposit(edep);
    theTotalResult->ProposeNonIonizingEnergyDeposit(edep);
    result->Clear();
  }
  return theTotalResult;
}

◆ PostStepGetPhysicalInteractionLength()

G4double G4TauNeutrinoNucleusProcess::PostStepGetPhysicalInteractionLength	(	const G4Track &	track,
		G4double	previousStepSize,
		G4ForceCondition *	condition )

overridevirtual

Reimplemented from G4HadronicProcess.

Definition at line 90 of file G4TauNeutrinoNucleusProcess.cc.

{
  return G4VDiscreteProcess::PostStepGetPhysicalInteractionLength(  track,
                                       previousStepSize,  condition );
}

◆ ProcessDescription()

void G4TauNeutrinoNucleusProcess::ProcessDescription ( std::ostream & outFile ) const

overridevirtual

Reimplemented from G4HadronicProcess.

Definition at line 121 of file G4TauNeutrinoNucleusProcess.cc.

{
 
    outFile << "G4TauNeutrinoNucleusProcess handles the inelastic scattering of \n"
            << "tau-neutrino on nucleus by invoking the following  model(s) and \n"
            << "cross section(s).\n";
 
}

◆ SetBiasingFactor()

void G4TauNeutrinoNucleusProcess::SetBiasingFactor ( G4double bf )

Definition at line 74 of file G4TauNeutrinoNucleusProcess.cc.

{
  fNuNuclTotXscBias = bf;
}

◆ SetBiasingFactors()

void G4TauNeutrinoNucleusProcess::SetBiasingFactors	(	G4double	bfCc,
		G4double	bfNc )

Definition at line 81 of file G4TauNeutrinoNucleusProcess.cc.

{
  fNuNuclCcBias = bfCc;
  fNuNuclNcBias = bfNc;
  fNuNuclTotXscBias = std::max(fNuNuclCcBias, fNuNuclNcBias);
}

◆ SetLowestEnergy()

void G4TauNeutrinoNucleusProcess::SetLowestEnergy ( G4double val )

Definition at line 392 of file G4TauNeutrinoNucleusProcess.cc.

{
  lowestEnergy = val;
}

The documentation for this class was generated from the following files:

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ G4TauNeutrinoNucleusProcess() [1/2]

◆ ~G4TauNeutrinoNucleusProcess()

◆ G4TauNeutrinoNucleusProcess() [2/2]

Member Function Documentation

◆ GetMeanFreePath()

◆ operator=()

◆ PostStepDoIt()

◆ PostStepGetPhysicalInteractionLength()

◆ ProcessDescription()

◆ SetBiasingFactor()

◆ SetBiasingFactors()

◆ SetLowestEnergy()