#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

const G4Region *	theRegion

Detailed Description

Definition at line 28 of file GflashEMShowerModel.h.

Constructor & Destructor Documentation

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

Definition at line 24 of file GflashEMShowerModel.cc.

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

   : G4VFastSimulationModel(modelName, envelope), theParSet(parSet) {
 
   theProfile = new GflashEMShowerProfile(parSet);
   theRegion  = const_cast<const G4Region*>(envelope); 
 
   theGflashStep = new G4Step();
   theGflashTouchableHandle = new G4TouchableHistory();
   theGflashNavigator = new G4Navigator();
 
 }

GflashEMShowerModel::~GflashEMShowerModel ( )

override

Definition at line 40 of file GflashEMShowerModel.cc.

References theGflashStep, and theProfile.

                                           {
 
   delete theProfile;
   delete theGflashStep;
 }

Member Function Documentation

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

override

Definition at line 73 of file GflashEMShowerModel.cc.

References ALCARECOTkAlJpsiMuMu_cff::charge, Gflash::findShowerType(), GeV, 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);
 }

G4bool GflashEMShowerModel::excludeDetectorRegion ( const G4FastTrack & fastTrack )

private

Definition at line 145 of file GflashEMShowerModel.cc.

References PVValHelper::eta.

Referenced by ModelTrigger().

                                                                               {
 
   G4bool isExcluded=false;
 
   //exclude regions where geometry are complicated
   //+- one supermodule around the EB/EE boundary: 1.479 +- 0.0174*5 
   G4double eta =   fastTrack.GetPrimaryTrack()->GetPosition().pseudoRapidity() ;
   if(std::fabs(eta) > 1.392 && std::fabs(eta) < 1.566) { return true; }
 
   return isExcluded;
 }

G4bool GflashEMShowerModel::IsApplicable ( const G4ParticleDefinition & particleType )

override

Definition at line 46 of file GflashEMShowerModel.cc.

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

void GflashEMShowerModel::makeHits ( const G4FastTrack & fastTrack )

private

Definition at line 95 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);
   }
 
 }

G4bool GflashEMShowerModel::ModelTrigger ( const G4FastTrack & fastTrack )

override

Definition at line 54 of file GflashEMShowerModel.cc.

References excludeDetectorRegion(), GeV, 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.
   G4TouchableHistory* touch = 
     (G4TouchableHistory*)(fastTrack.GetPrimaryTrack()->GetTouchable());
   G4VPhysicalVolume* pCurrentVolume = touch->GetVolume();
   if( pCurrentVolume == nullptr) { return false; }
 
   G4LogicalVolume* lv = pCurrentVolume->GetLogicalVolume();
   if(lv->GetRegion() != theRegion) { return false; }
   return true;
 }

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);
 }