Other detector/parameter_table

Previous topic

Truth Information

Next topic

Electronics Simulation

This Page

Daya Bay Links

Content Skeleton

Truth ParametersΒΆ

Name & Synonyms Type Track Vertex Stats Description
timet double X X X Time of the vertex/track start/step
xglobal\_x double X X X Global X position of the vertex/track start/step
yglobal\_y double X X X Global Y position of the vertex/track start/step
zglobal\_z double X X X Global Z position of the vertex/track start/step
rradiuspos\_r double X X X Global sqrt(X*X+Y*Y) position of the vertex/step/start
lxlocal\_xdet\_x double X X X X Position relative to the local physical volume
lylocal\_ydet\_y double X X X Y Position relative to the local physical volume
lzlocal\_zdet\_z double X X X Z Position relative to the local physical volume
lrlocal\_rdet\_r double X X X sqrt(X*X+Y*Y) position relative to the local physical volume
VolumeVolumeNameLogicalVolume string X X X Name of the logical volume of vertex/track start/step
MaterialMaterialName string X X X Name of material at vertex/track start/step
DetectorElementName double X X X Name of best-match Detector Element at vertex/track start/step
MatchDetectorElementMatch double X X X Level of match for Detector Element. 0=perfectpostive = inside
NicheIdNiche double X X X ID number (4-byte) best associated with DetElem
DetectorId double X X X Detector ID number (4-byte)
SiteId double X X X Site ID number (4-byte)
Site double X X X Site number (1-16)
ADAdNumber double X X X AD number (1-4)
momentump double X X X Momentum at vertex/track start/step
EtotEnergyTotalEnergy double X X X Energy at track start or vertex
KEkineticEnergy double X X X Kinetic energy at vertex/track start/step
vxdir\_xu double X X X X-direction cosine
vydir\_yv double X X X Y-direction cosine
vzdir\_zw double X X X Z-direction cosine
ProcessType double X X X Type of process (see below)
ProcessProcessName string X X X Name of current process (via G4VProcess->GetProcessName())
pdgpdgcodeparticle double X X X PDG code of particle. Note that opticalphoton=20022
chargeParticleChargeq double X X X Charge of particle
idtrackid double X X X Geant TrackID of particle. Useful for debugging
creatorPdgcreator double X X X PDG code for the immediate parent particle
massm double X X X Mass of the particle
ParticleName string X X X Name of the particle (Geant4 name)
CreatorProcessNameCreatorProcess string X X X Name of process that created this particle. (Tracks: same as “ProcessName”)
DetElem inDetectorElement in custom X X X Special: matches if the detector element specified supports the Track/Vertex volume
Step\_dEdE double   X X Energy deposited in current step
Step\_dE\_Ionde\_ionionization double   X X Energy deposited by ionization in current step
Step\_qDEquenched\_dEqdE double   X X Quenched energy. Valid only for scintillator
Step\_dxStepLengthdx double   X X Step length
Step\_dtStepDurationdt double   X X Step duration
Step\_dAngledAngle double   X X Change in particle angle before/after this Step (degrees)
ExE\_weighted\_x double   X X Energy-weighted global position - x
EyE\_weighted\_y double   X X Energy-weighted global position - y
EzE\_weighted\_z double   X X Energy-weighted global position - z
EtE\_weighted\_t double   X X Energy-weighted global time
qExqE\_weighted\_xquenched\_weighted\_x double   X X Quenched energy- weighted global position - x
qEyqE\_weighted\_yquenched\_weighted\_y double   X X Quenched energy- weighted global position - y
qEzqE\_weighted\_zquenched\_weighted\_z double   X X Quenched energy- weighted global position - z
qEtqE\_weighted\_tquenched\_weighted\_t double   X X Quenched energy- weighted global time
IsStoppingstopEnd double   X X 1 if particle is stopping0 otherwise
IsStartingstartbegin double   X X 1 if particle is starting (this is the first step)0 otherwise
StepNumber double   X X Number of steps completed for this particle
VolumeChangedNewVolume double   X X 1 if the particle is entering a new volume0 otherwise
MaterialChangedNewMaterial double   X X 1 if the particle is entering a new material0 otherwise
ParentPdgAncestorPdgAncestor double X X   PDG code of the last ancestor where a SimTrack was created
ParentIndirectionAncestorIndirection double X X   Generations passed since the last ancestor was created
GrandParentPdgGrandParent double X X   PDG code of the immediate ancestor’s ancestor
GrandParentIndirection double X X   Indirection to the immediate ancestor’s ancestor
distanceFromLastVertex double   X   Distance from the last created SimVertex.
TimeSinceLastVertex double   X   Time since the last created SimVertex.
EnergyLostSinceLastVertex double   X   Energy difference sine the last created SimVertex
AngleFromLastVertex double   X   Change in direction since the last created SimVertex (degrees)