PSimHit Class Reference

#include <PSimHit.h>

Inheritance diagram for PSimHit:

Public Member Functions
unsigned int	detUnitId () const
float	energyLoss () const
	The energy deposit in the PSimHit, in ???. More...
Local3DPoint	entryPoint () const
	Entry point in the local Det frame. More...
EncodedEventId	eventId () const
Local3DPoint	exitPoint () const
	Exit point in the local Det frame. More...
LocalVector	localDirection () const
	Obsolete. Same as momentumAtEntry().unit(), for backward compatibility. More...
Local3DPoint	localPosition () const
LocalVector	momentumAtEntry () const
	The momentum of the track that produced the hit, at entry point. More...
float	pabs () const
	fast and more accurate access to momentumAtEntry().mag() More...
int	particleType () const
Geom::Phi< float >	phiAtEntry () const
	fast and more accurate access to momentumAtEntry().phi() More...
unsigned short	processType () const
	PSimHit ()
	PSimHit (const Local3DPoint &entry, const Local3DPoint &exit, float pabs, float tof, float eloss, int particleType, unsigned int detId, unsigned int trackId, float theta, float phi, unsigned short processType=0)
void	setEventId (EncodedEventId e)
void	setTof (float tof)
Geom::Theta< float >	thetaAtEntry () const
	fast and more accurate access to momentumAtEntry().theta() More...
float	timeOfFlight () const
float	tof () const
	deprecated name for timeOfFlight() More...
unsigned int	trackId () const

Protected Attributes
unsigned int	theDetUnitId
float	theEnergyLoss
Local3DPoint	theEntryPoint
EncodedEventId	theEventId
float	thePabs
int	theParticleType
float	thePhiAtEntry
unsigned short	theProcessType
Local3DVector	theSegment
float	theThetaAtEntry
float	theTof
unsigned int	theTrackId

Friends
class	TrackingSlaveSD

Detailed Description

Persistent-capable SimHit. Suitable for tracking detectors.

Definition at line 15 of file PSimHit.h.

Constructor & Destructor Documentation

PSimHit() [1/2]

PSimHit::PSimHit ( )

inline

Definition at line 17 of file PSimHit.h.

: theDetUnitId(0) {}

PSimHit() [2/2]

PSimHit::PSimHit ( const Local3DPoint &  entry, const Local3DPoint &  exit, float  pabs, float  tof, float  eloss, int  particleType, unsigned int  detId, unsigned int  trackId, float  theta, float  phi, unsigned short  processType = 0  )

inline

Definition at line 19 of file PSimHit.h.

      : theEntryPoint(entry),
        theSegment(exit - entry),
        thePabs(pabs),
        theEnergyLoss(eloss),
        theThetaAtEntry(theta),
        thePhiAtEntry(phi),
        theTof(tof),
        theParticleType(particleType),
        theProcessType(processType),
        theDetUnitId(detId),
        theTrackId(trackId) {}

Member Function Documentation

detUnitId()

unsigned int PSimHit::detUnitId ( ) const

inline

The DetUnit identifier, to be interpreted in the context of the detector system that produced the hit. E.g. in the Tracker this is index used with DetUnitNumbering<TrackerSimHitTag>. Currently the context is not deducible from the PSimHit and must be known when the PSimHit is created/accessed.

Definition at line 97 of file PSimHit.h.

References theDetUnitId.

Referenced by CkfDebugger::analyseCompatibleMeasurements(), CkfDebugger::analyseRecHitExistance(), TrackerHitAssociator::associateHit(), FWTrackingParticleProxyBuilderFullFramework::build(), FWPSimHitProxyBuilder::buildViewType(), MuonTrackResidualAnalyzer::computeResolution(), TkAccumulatingSensitiveDetector::createHit(), CkfDebugger::det(), CkfDebugger::SimHit::detUnitId(), SubsystemNeutronReader::generateChamberNoise(), ME0SimpleModel::getSimHitBx(), GEMSignalModel::getSimHitBx(), RPCSynchronizer::getSimHitBx(), RPCSynchronizer::getSimHitBxAndTimingForIRPC(), CkfDebugger::hasDelta(), CkfDebugger::nextCorrectHits(), CkfDebugger::position(), cms::DigitizerFP420::produce(), FP420DigiMain::run(), MuonSensitiveDetector::saveHit(), TkAccumulatingSensitiveDetector::sendHit(), DTHitAssociator::SimHitOK(), and TkAccumulatingSensitiveDetector::updateHit().

{ return theDetUnitId; }

energyLoss()

float PSimHit::energyLoss ( ) const

inline

The energy deposit in the PSimHit, in ???.

Definition at line 79 of file PSimHit.h.

References theEnergyLoss.

Referenced by TkAccumulatingSensitiveDetector::createHit(), CkfDebugger::SimHit::energyLoss(), SubsystemNeutronReader::generateChamberNoise(), FP420DigiMain::run(), TkAccumulatingSensitiveDetector::sendHit(), CSCGasCollisions::simulate(), TkAccumulatingSensitiveDetector::updateHit(), and CSCGasCollisions::writeSummary().

{ return theEnergyLoss; }

entryPoint()

Local3DPoint PSimHit::entryPoint ( ) const

inline

Entry point in the local Det frame.

Definition at line 43 of file PSimHit.h.

References theEntryPoint.

Referenced by TkAccumulatingSensitiveDetector::createHit(), SubsystemNeutronReader::generateChamberNoise(), FP420DigiMain::run(), MuonSensitiveDetector::saveHit(), TkAccumulatingSensitiveDetector::sendHit(), DTHitAssociator::SimHitOK(), CSCGasCollisions::simulate(), TkAccumulatingSensitiveDetector::updateHit(), and CSCGasCollisions::writeSummary().

{ return theEntryPoint; }

eventId()

EncodedEventId PSimHit::eventId ( ) const

inline

Definition at line 108 of file PSimHit.h.

References theEventId.

Referenced by DTHitAssociator::associateDTHitId(), TrackerHitAssociator::associateHit(), ntupleDataFormat.Event::eventIdStr(), SiStripRecHitsValid::rechitanalysis(), and SiStripRecHitsValid::rechitanalysis_matched().

{ return theEventId; }

exitPoint()

Local3DPoint PSimHit::exitPoint ( ) const

inline

Exit point in the local Det frame.

Definition at line 46 of file PSimHit.h.

References theEntryPoint, and theSegment.

Referenced by TkAccumulatingSensitiveDetector::closeHit(), TkAccumulatingSensitiveDetector::createHit(), SubsystemNeutronReader::generateChamberNoise(), FP420DigiMain::run(), MuonSensitiveDetector::saveHit(), TkAccumulatingSensitiveDetector::sendHit(), DTHitAssociator::SimHitOK(), CSCGasCollisions::simulate(), TkAccumulatingSensitiveDetector::updateHit(), and CSCGasCollisions::writeSummary().

{ return theEntryPoint + theSegment; }

localDirection()

LocalVector PSimHit::localDirection ( ) const

inline

Obsolete. Same as momentumAtEntry().unit(), for backward compatibility.

Definition at line 58 of file PSimHit.h.

References f, phiAtEntry(), and thetaAtEntry().

Referenced by CkfDebugger::SimHit::localDirection().

{ return LocalVector(thetaAtEntry(), phiAtEntry(), 1.f); }

localPosition()

Local3DPoint PSimHit::localPosition ( ) const

inline

Local position in the Det frame. Normally it is on the detection surface, but this is not checked. It is computed as the middle point between entry and exit.

Definition at line 52 of file PSimHit.h.

References theEntryPoint, and theSegment.

Referenced by CkfDebugger::analyseCompatibleMeasurements(), TestHits::analyze(), TestSmoothHits::analyze(), TestTrackHits::analyze(), SiPixelErrorEstimation::analyze(), FWTrackingParticleProxyBuilderFullFramework::build(), FWPSimHitProxyBuilder::buildViewType(), DTRecHitQuality::compute(), MuonTrackResidualAnalyzer::computeResolution(), Phase2OTValidateRecHitBase::fillOTRecHitHistos(), Phase2ITValidateRecHitBase::fillRechitHistos(), ME0SimpleModel::getSimHitBx(), GEMSignalModel::getSimHitBx(), RPCSynchronizer::getSimHitBx(), RPCSynchronizer::getSimHitBxAndTimingForIRPC(), CkfDebugger::SimHit::globalPosition(), PixelTemplateSmearerBase::hitsMerge(), CkfDebugger::SimHit::localPosition(), CkfDebugger::position(), SiStripRecHitsValid::rechitanalysis(), SiStripTrackingRecHitsValid::rechitanalysis(), SiStripTrackingRecHitsValid::rechitanalysis_matched(), and DTHitAssociator::SimHitOK().

{ return theEntryPoint + 0.5 * theSegment; }

momentumAtEntry()

LocalVector PSimHit::momentumAtEntry ( ) const

inline

The momentum of the track that produced the hit, at entry point.

Definition at line 55 of file PSimHit.h.

References pabs(), phiAtEntry(), and thetaAtEntry().

Referenced by TestHits::analyze(), TestSmoothHits::analyze(), TestTrackHits::analyze(), FWTrackingParticleProxyBuilderFullFramework::build(), MuonTrackResidualAnalyzer::computeResolution(), and PixelTemplateSmearerBase::hitsMerge().

{ return LocalVector(thetaAtEntry(), phiAtEntry(), pabs()); }

pabs()

float PSimHit::pabs ( ) const

inline

fast and more accurate access to momentumAtEntry().mag()

Definition at line 67 of file PSimHit.h.

References thePabs.

Referenced by CkfDebugger::associated(), SubsystemNeutronReader::generateChamberNoise(), CkfDebugger::goodSimHit(), momentumAtEntry(), CkfDebugger::SimHit::pabs(), FP420DigiMain::run(), TkAccumulatingSensitiveDetector::sendHit(), CSCGasCollisions::simulate(), and CSCGasCollisions::writeSummary().

{ return thePabs; }

particleType()

int PSimHit::particleType ( ) const

inline

The particle type of the track that produced this hit, in standard PDG code. NB: This differs from ORCA5 and earlier, where the code was Geant3. The particle type of the hit may differ from the particle type of the SimTrack with id trackId(). This happends if the hit was created by a secondary track (e.g. a delta ray) originating from the trackId() and not existing as a separate SimTrack.

Definition at line 89 of file PSimHit.h.

References theParticleType.

Referenced by SiPixelErrorEstimation::analyze(), FWPSimHitProxyBuilder::buildViewType(), SubsystemNeutronReader::generateChamberNoise(), GEMBaseValidation::isMuonSimHit(), CkfDebugger::SimHit::particleType(), FP420DigiMain::run(), CSCGasCollisions::simulate(), and CSCGasCollisions::writeSummary().

{ return theParticleType; }

phiAtEntry()

Geom::Phi<float> PSimHit::phiAtEntry ( ) const

inline

fast and more accurate access to momentumAtEntry().phi()

Definition at line 64 of file PSimHit.h.

References thePhiAtEntry.

Referenced by SubsystemNeutronReader::generateChamberNoise(), localDirection(), momentumAtEntry(), and CkfDebugger::SimHit::phiAtEntry().

{ return Geom::Phi<float>(thePhiAtEntry); }

processType()

unsigned short PSimHit::processType ( ) const

inline

The ID of the physics process that created the track that produced the hit. This is useful for identifying hits from secondary interactions, especially in the case when the track that produced the hit was not saved as a SimTrack. The meaning of the ID is defined outside of the PSimHit; The only value with special significance is zero (for "undefined"), so zero should not be the ID of any process.

Definition at line 120 of file PSimHit.h.

References theProcessType.

Referenced by CkfDebugger::analyseCompatibleMeasurements(), TestHits::analyze(), TestSmoothHits::analyze(), TestOutliers::analyze(), TestTrackHits::analyze(), SiPixelErrorEstimation::analyze(), TrackerHitAssociator::associateHit(), SubsystemNeutronReader::generateChamberNoise(), and CkfDebugger::SimHit::processType().

{ return theProcessType; }

setEventId()

void PSimHit::setEventId ( EncodedEventId  e )

inline

Definition at line 110 of file PSimHit.h.

References MillePedeFileConverter_cfg::e, and theEventId.

{ theEventId = e; }

setTof()

void PSimHit::setTof ( float  tof )

inline

Definition at line 122 of file PSimHit.h.

References theTof, and tof().

{ theTof = tof; }

thetaAtEntry()

Geom::Theta<float> PSimHit::thetaAtEntry ( ) const

inline

fast and more accurate access to momentumAtEntry().theta()

Definition at line 61 of file PSimHit.h.

References theThetaAtEntry.

Referenced by SubsystemNeutronReader::generateChamberNoise(), localDirection(), momentumAtEntry(), and CkfDebugger::SimHit::thetaAtEntry().

{ return Geom::Theta<float>(theThetaAtEntry); }

timeOfFlight()

float PSimHit::timeOfFlight ( ) const

inline

Time of flight in nanoseconds from the primary interaction to the entry point. Always positive in a PSimHit, but may become negative in a SimHit due to bunch assignment.

Definition at line 73 of file PSimHit.h.

References tof().

Referenced by CkfDebugger::associated(), ME0SimpleModel::getSimHitBx(), GEMSignalModel::getSimHitBx(), RPCSynchronizer::getSimHitBx(), RPCSynchronizer::getSimHitBxAndTimingForIRPC(), CkfDebugger::nextCorrectHits(), TkAccumulatingSensitiveDetector::sendHit(), and CkfDebugger::SimHit::timeOfFlight().

{ return tof(); }

tof()

float PSimHit::tof ( ) const

inline

deprecated name for timeOfFlight()

Definition at line 76 of file PSimHit.h.

References theTof.

Referenced by SubsystemNeutronReader::generateChamberNoise(), SortByTime::operator()(), FP420DigiMain::run(), setTof(), and timeOfFlight().

{ return theTof; }

trackId()

unsigned int PSimHit::trackId ( ) const

inline

The SimTrack ID of the "mother" track. This may be the actual charged track that produced the hit, or a "mother" of this track, in case the track that produced the hit was not saved as a SimTrack. This ID must be interpreted in the context of the SimEvent to which the PSimHit belongs.

Definition at line 106 of file PSimHit.h.

References theTrackId.

Referenced by CkfDebugger::analyseRecHitExistance(), DTHitAssociator::associateDTHitId(), TrackerHitAssociator::associateHit(), CkfDebugger::correctMeas(), TkAccumulatingSensitiveDetector::createHit(), Phase2OTValidateRecHitBase::fillOTRecHitHistos(), Phase2ITValidateRecHitBase::fillRechitHistos(), SubsystemNeutronReader::generateChamberNoise(), FastTrackerRecHitMatcher::produce(), FP420DigiMain::run(), TkAccumulatingSensitiveDetector::sendHit(), CkfDebugger::SimHit::trackId(), and TkAccumulatingSensitiveDetector::updateHit().

{ return theTrackId; }

Friends And Related Function Documentation

TrackingSlaveSD

friend class TrackingSlaveSD

friend

Definition at line 143 of file PSimHit.h.

Member Data Documentation

theDetUnitId

unsigned int PSimHit::theDetUnitId

protected

Definition at line 139 of file PSimHit.h.

Referenced by detUnitId().

theEnergyLoss

float PSimHit::theEnergyLoss

protected

Definition at line 129 of file PSimHit.h.

Referenced by UpdatablePSimHit::addEnergyLoss(), energyLoss(), and UpdatablePSimHit::setEnergyLoss().

theEntryPoint

Local3DPoint PSimHit::theEntryPoint

protected

Definition at line 126 of file PSimHit.h.

Referenced by entryPoint(), exitPoint(), localPosition(), UpdatablePSimHit::setEntryPoint(), and UpdatablePSimHit::updateExitPoint().

theEventId

EncodedEventId PSimHit::theEventId

protected

Definition at line 141 of file PSimHit.h.

Referenced by eventId(), and setEventId().

thePabs

float PSimHit::thePabs

protected

Definition at line 128 of file PSimHit.h.

Referenced by pabs().

theParticleType

int PSimHit::theParticleType

protected

Definition at line 134 of file PSimHit.h.

Referenced by particleType().

thePhiAtEntry

float PSimHit::thePhiAtEntry

protected

Definition at line 131 of file PSimHit.h.

Referenced by phiAtEntry().

theProcessType

unsigned short PSimHit::theProcessType

protected

Definition at line 135 of file PSimHit.h.

Referenced by processType().

theSegment

Local3DVector PSimHit::theSegment

protected

Definition at line 127 of file PSimHit.h.

Referenced by exitPoint(), localPosition(), UpdatablePSimHit::setEntryPoint(), and UpdatablePSimHit::updateExitPoint().

theThetaAtEntry

float PSimHit::theThetaAtEntry

protected

Definition at line 130 of file PSimHit.h.

Referenced by thetaAtEntry().

theTof

float PSimHit::theTof

protected

Definition at line 133 of file PSimHit.h.

Referenced by setTof(), and tof().

theTrackId

unsigned int PSimHit::theTrackId

protected

Definition at line 140 of file PSimHit.h.

Referenced by UpdatablePSimHit::setTrackId(), and trackId().