LowEnergyFastSimModel Class Reference

#include <LowEnergyFastSimModel.h>

Inheritance diagram for LowEnergyFastSimModel:

Public Member Functions
void	DoIt (const G4FastTrack &fastTrack, G4FastStep &fastStep) override
G4bool	IsApplicable (const G4ParticleDefinition &particle) override
	LowEnergyFastSimModel (const G4String &name, G4Region *region, const edm::ParameterSet &parSet)
G4bool	ModelTrigger (const G4FastTrack &fastTrack) override

Private Attributes
G4bool	fCheck
G4double	fEmax
GFlashHitMaker	fHitMaker
LowEnergyFastSimParam	fParam
const G4ParticleDefinition *	fPositron
const G4Envelope *	fRegion
G4ThreeVector	fTailPos
const TrackingAction *	fTrackingAction

Detailed Description

Definition at line 17 of file LowEnergyFastSimModel.h.

Constructor & Destructor Documentation

LowEnergyFastSimModel()

LowEnergyFastSimModel::LowEnergyFastSimModel	(	const G4String &	name,
		G4Region *	region,
		const edm::ParameterSet &	parSet
	)

Definition at line 18 of file LowEnergyFastSimModel.cc.

References fEmax, fPositron, and edm::ParameterSet::getParameter().

    : G4VFastSimulationModel(name, region),
      fRegion(region),
      fTrackingAction(nullptr),
      fCheck(false),
      fTailPos(0., 0., 0.) {
  fEmax = parSet.getParameter<double>("LowEnergyGflashEcalEmax") * CLHEP::GeV;
  fPositron = G4Positron::Positron();
}

Member Function Documentation

DoIt()

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

override

Definition at line 46 of file LowEnergyFastSimModel.cc.

References funct::cos(), HCALHighEnergyHPDFilter_cfi::energy, fHitMaker, fParam, fPositron, fTailPos, LowEnergyFastSimParam::GetInPointEnergyFraction(), LowEnergyFastSimParam::GetRadius(), LowEnergyFastSimParam::GetZ(), mps_fire::i, phi, alignCSCRings::r, funct::sin(), HLT_2022v12_cff::track, twomass, and z.

                                                                                   {
  fastStep.KillPrimaryTrack();
  fastStep.SetPrimaryTrackPathLength(0.0);
  auto track = fastTrack.GetPrimaryTrack();
  G4double energy = track->GetKineticEnergy();

  const G4ThreeVector& pos = track->GetPosition();

  G4double inPointEnergy = fParam.GetInPointEnergyFraction(energy) * energy;

  // take into account positron annihilation (not included in in-point)
  if (fPositron == track->GetDefinition())
    energy += twomass;

  const G4ThreeVector& momDir = track->GetMomentumDirection();

  // in point energy deposition
  GFlashEnergySpot spot;
  spot.SetEnergy(inPointEnergy);
  spot.SetPosition(pos);
  fHitMaker.make(&spot, &fastTrack);

  // tail energy deposition
  G4double etail = energy - inPointEnergy;
  const G4int nspots = (G4int)(etail) + 1;
  const G4double tailEnergy = etail / (G4double)nspots;
  for (G4int i = 0; i < nspots; ++i) {
    const G4double r = fParam.GetRadius(energy);
    const G4double z = fParam.GetZ();

    const G4double phi = CLHEP::twopi * G4UniformRand();
    fTailPos.set(r * std::cos(phi), r * std::sin(phi), z);
    fTailPos.rotateUz(momDir);
    fTailPos += pos;

    spot.SetEnergy(tailEnergy);
    spot.SetPosition(fTailPos);
    fHitMaker.make(&spot, &fastTrack);
  }
}

IsApplicable()

G4bool LowEnergyFastSimModel::IsApplicable ( const G4ParticleDefinition &  particle )

override

Definition at line 28 of file LowEnergyFastSimModel.cc.

References funct::abs().

                                                                               {
  return (11 == std::abs(particle.GetPDGEncoding()));
}

ModelTrigger()

G4bool LowEnergyFastSimModel::ModelTrigger ( const G4FastTrack &  fastTrack )

override

Definition at line 32 of file LowEnergyFastSimModel.cc.

References funct::abs(), HCALHighEnergyHPDFilter_cfi::energy, fCheck, fEmax, fRegion, fTrackingAction, TrackingAction::geant4Track(), and HLT_2022v12_cff::track.

                                                                       {
  const G4Track* track = fastTrack.GetPrimaryTrack();
  if (fCheck) {
    if (nullptr == fTrackingAction) {
      fTrackingAction = static_cast<const TrackingAction*>(G4EventManager::GetEventManager()->GetUserTrackingAction());
    }
    int pdgMother = std::abs(fTrackingAction->geant4Track()->GetDefinition()->GetPDGEncoding());
    if (pdgMother == 11 || pdgMother == 22)
      return false;
  }
  G4double energy = track->GetKineticEnergy();
  return (energy < fEmax && fRegion == fastTrack.GetEnvelope());
}

Member Data Documentation

fCheck

G4bool LowEnergyFastSimModel::fCheck

private

Definition at line 30 of file LowEnergyFastSimModel.h.

Referenced by ModelTrigger().

fEmax

G4double LowEnergyFastSimModel::fEmax

private

Definition at line 26 of file LowEnergyFastSimModel.h.

Referenced by LowEnergyFastSimModel(), and ModelTrigger().

fHitMaker

GFlashHitMaker LowEnergyFastSimModel::fHitMaker

private

Definition at line 32 of file LowEnergyFastSimModel.h.

Referenced by DoIt().

fParam

LowEnergyFastSimParam LowEnergyFastSimModel::fParam

private

Definition at line 33 of file LowEnergyFastSimModel.h.

Referenced by DoIt().

fPositron

const G4ParticleDefinition* LowEnergyFastSimModel::fPositron

private

Definition at line 29 of file LowEnergyFastSimModel.h.

Referenced by DoIt(), and LowEnergyFastSimModel().

fRegion

const G4Envelope* LowEnergyFastSimModel::fRegion

private

Definition at line 27 of file LowEnergyFastSimModel.h.

Referenced by ModelTrigger().

fTailPos

G4ThreeVector LowEnergyFastSimModel::fTailPos

private

Definition at line 31 of file LowEnergyFastSimModel.h.

Referenced by DoIt().

fTrackingAction

const TrackingAction* LowEnergyFastSimModel::fTrackingAction

private

Definition at line 28 of file LowEnergyFastSimModel.h.

Referenced by ModelTrigger().