GflashEMShowerModel Class Reference

#include <GflashEMShowerModel.h>

Inheritance diagram for GflashEMShowerModel:

Public Member Functions
void	DoIt (const G4FastTrack &, G4FastStep &) override
	GflashEMShowerModel (const G4String &name, G4Envelope *env, const edm::ParameterSet &parSet)
G4bool	IsApplicable (const G4ParticleDefinition &) override
G4bool	ModelTrigger (const G4FastTrack &) override
	~GflashEMShowerModel () override

Private Member Functions
G4bool	excludeDetectorRegion (const G4FastTrack &fastTrack)
void	makeHits (const G4FastTrack &fastTrack)
void	updateGflashStep (const G4ThreeVector &position, G4double time)

Private Attributes
G4Navigator *	theGflashNavigator
G4Step *	theGflashStep
G4TouchableHandle	theGflashTouchableHandle
edm::ParameterSet	theParSet
GflashEMShowerProfile *	theProfile
G4Region *	theRegion

Detailed Description

Definition at line 28 of file GflashEMShowerModel.h.

Constructor & Destructor Documentation

GflashEMShowerModel()

GflashEMShowerModel::GflashEMShowerModel	(	const G4String &	name,
		G4Envelope *	env,
		const edm::ParameterSet &	parSet
	)

Definition at line 23 of file GflashEMShowerModel.cc.

References theGflashNavigator, theGflashStep, theGflashTouchableHandle, theProfile, and theRegion.

    : G4VFastSimulationModel(modelName, envelope), theParSet(parSet) {
  theProfile = new GflashEMShowerProfile(parSet);
  theRegion = reinterpret_cast<G4Region *>(envelope);

  theGflashStep = new G4Step();
  theGflashTouchableHandle = new G4TouchableHistory();
  theGflashNavigator = new G4Navigator();
}

~GflashEMShowerModel()

GflashEMShowerModel::~GflashEMShowerModel ( )

override

Definition at line 37 of file GflashEMShowerModel.cc.

References theGflashStep, and theProfile.

                                          {
  delete theProfile;
  delete theGflashStep;
}

Member Function Documentation

DoIt()

void GflashEMShowerModel::DoIt ( const G4FastTrack &  fastTrack, G4FastStep &  fastStep  )

override

Definition at line 71 of file GflashEMShowerModel.cc.

References ALCARECOTkAlJpsiMuMu_cff::charge, hcalRecHitTable_cff::energy, Gflash::findShowerType(), GflashEMShowerProfile::initialize(), makeHits(), GflashEMShowerProfile::parameterization(), position, and theProfile.

                                                                                 {
  // Kill the parameterised particle:
  fastStep.KillPrimaryTrack();
  fastStep.ProposePrimaryTrackPathLength(0.0);

  // input variables for GflashEMShowerProfile with showerType = 1,5 (shower
  // starts inside crystals)
  G4double energy = fastTrack.GetPrimaryTrack()->GetKineticEnergy() / GeV;
  G4double globalTime = fastTrack.GetPrimaryTrack()->GetStep()->GetPostStepPoint()->GetGlobalTime();
  G4double charge = fastTrack.GetPrimaryTrack()->GetStep()->GetPreStepPoint()->GetCharge();
  G4ThreeVector position = fastTrack.GetPrimaryTrack()->GetPosition() / cm;
  G4ThreeVector momentum = fastTrack.GetPrimaryTrack()->GetMomentum() / GeV;
  G4int showerType = Gflash::findShowerType(position);

  // Do actual parameterization. The result of parameterization is gflashHitList
  theProfile->initialize(showerType, energy, globalTime, charge, position, momentum);
  theProfile->parameterization();

  // make hits
  makeHits(fastTrack);
}

excludeDetectorRegion()

G4bool GflashEMShowerModel::excludeDetectorRegion ( const G4FastTrack &  fastTrack )

private

Definition at line 143 of file GflashEMShowerModel.cc.

References PVValHelper::eta.

Referenced by ModelTrigger().

                                                                              {
  // exclude regions where geometry are complicated
  //+- one supermodule around the EB/EE boundary: 1.479 +- 0.0174*5
  G4double eta = fastTrack.GetPrimaryTrack()->GetPosition().pseudoRapidity();
  return (std::fabs(eta) > 1.392 && std::fabs(eta) < 1.566);
}

IsApplicable()

G4bool GflashEMShowerModel::IsApplicable ( const G4ParticleDefinition &  particleType )

override

Definition at line 42 of file GflashEMShowerModel.cc.

References PbPb_ZMuSkimMuonDPG_cff::particleType.

                                                                                 {
  return (&particleType == G4Electron::ElectronDefinition() || &particleType == G4Positron::PositronDefinition());
}

makeHits()

void GflashEMShowerModel::makeHits ( const G4FastTrack &  fastTrack )

private

Definition at line 93 of file GflashEMShowerModel.cc.

References GflashEMShowerProfile::getGflashHitList(), theGflashNavigator, theGflashStep, theGflashTouchableHandle, theProfile, theRegion, and updateGflashStep().

Referenced by DoIt().

                                                               {
  std::vector<GflashHit> &gflashHitList = theProfile->getGflashHitList();

  theGflashStep->SetTrack(const_cast<G4Track *>(fastTrack.GetPrimaryTrack()));

  theGflashStep->GetPostStepPoint()->SetProcessDefinedStep(
      const_cast<G4VProcess *>(fastTrack.GetPrimaryTrack()->GetStep()->GetPostStepPoint()->GetProcessDefinedStep()));
  theGflashNavigator->SetWorldVolume(
      G4TransportationManager::GetTransportationManager()->GetNavigatorForTracking()->GetWorldVolume());

  std::vector<GflashHit>::const_iterator spotIter = gflashHitList.begin();
  std::vector<GflashHit>::const_iterator spotIterEnd = gflashHitList.end();

  for (; spotIter != spotIterEnd; spotIter++) {
    // put touchable for each hit so that touchable history keeps track of each
    // step.
    theGflashNavigator->LocateGlobalPointAndUpdateTouchableHandle(
        spotIter->getPosition(), G4ThreeVector(0, 0, 0), theGflashTouchableHandle, false);
    updateGflashStep(spotIter->getPosition(), spotIter->getTime());

    // Send G4Step information to Hit/Digi if the volume is sensitive
    // Copied from G4SteppingManager.cc

    G4VPhysicalVolume *aCurrentVolume = theGflashStep->GetPreStepPoint()->GetPhysicalVolume();
    if (aCurrentVolume == nullptr)
      continue;

    G4LogicalVolume *lv = aCurrentVolume->GetLogicalVolume();
    if (lv->GetRegion() != theRegion)
      continue;

    theGflashStep->GetPreStepPoint()->SetSensitiveDetector(aCurrentVolume->GetLogicalVolume()->GetSensitiveDetector());
    G4VSensitiveDetector *aSensitive = theGflashStep->GetPreStepPoint()->GetSensitiveDetector();

    if (aSensitive == nullptr)
      continue;

    theGflashStep->SetTotalEnergyDeposit(spotIter->getEnergy());
    aSensitive->Hit(theGflashStep);
  }
}

ModelTrigger()

G4bool GflashEMShowerModel::ModelTrigger ( const G4FastTrack &  fastTrack )

override

Definition at line 47 of file GflashEMShowerModel.cc.

References excludeDetectorRegion(), GetVolume(), and theRegion.

                                                                     {
  // Mininum energy cutoff to parameterize
  if (fastTrack.GetPrimaryTrack()->GetKineticEnergy() < GeV) {
    return false;
  }
  if (excludeDetectorRegion(fastTrack)) {
    return false;
  }

  // This will be changed accordingly when the way
  // dealing with CaloRegion changes later.
  const G4VPhysicalVolume *pCurrentVolume = (fastTrack.GetPrimaryTrack()->GetTouchable())->GetVolume();
  if (pCurrentVolume == nullptr) {
    return false;
  }

  const G4LogicalVolume *lv = pCurrentVolume->GetLogicalVolume();
  if (lv->GetRegion() != theRegion) {
    return false;
  }
  return true;
}

updateGflashStep()

void GflashEMShowerModel::updateGflashStep ( const G4ThreeVector &  position, G4double  time  )

private

Definition at line 135 of file GflashEMShowerModel.cc.

References theGflashStep, and theGflashTouchableHandle.

Referenced by makeHits().

                                                                                                 {
  theGflashStep->GetPostStepPoint()->SetGlobalTime(timeGlobal);
  theGflashStep->GetPreStepPoint()->SetPosition(spotPosition);
  theGflashStep->GetPostStepPoint()->SetPosition(spotPosition);
  theGflashStep->GetPreStepPoint()->SetTouchableHandle(theGflashTouchableHandle);
}

Member Data Documentation

theGflashNavigator

G4Navigator* GflashEMShowerModel::theGflashNavigator

private

Definition at line 50 of file GflashEMShowerModel.h.

Referenced by GflashEMShowerModel(), and makeHits().

theGflashStep

G4Step* GflashEMShowerModel::theGflashStep

private

Definition at line 49 of file GflashEMShowerModel.h.

Referenced by GflashEMShowerModel(), makeHits(), updateGflashStep(), and ~GflashEMShowerModel().

theGflashTouchableHandle

G4TouchableHandle GflashEMShowerModel::theGflashTouchableHandle

private

Definition at line 51 of file GflashEMShowerModel.h.

Referenced by GflashEMShowerModel(), makeHits(), and updateGflashStep().

theParSet

edm::ParameterSet GflashEMShowerModel::theParSet

private

Definition at line 43 of file GflashEMShowerModel.h.

theProfile

GflashEMShowerProfile* GflashEMShowerModel::theProfile

private

Definition at line 45 of file GflashEMShowerModel.h.

Referenced by DoIt(), GflashEMShowerModel(), makeHits(), and ~GflashEMShowerModel().

theRegion

G4Region* GflashEMShowerModel::theRegion

private

Definition at line 47 of file GflashEMShowerModel.h.

Referenced by GflashEMShowerModel(), makeHits(), and ModelTrigger().