VTXDigiProcessor Class Reference

======= VTXDigiProcessor ==========
Produces SIT & VTX TrackerHit collection from SimTrackerHit collections. More...

#include <VTXDigiProcessor.h>

Inheritance diagram for VTXDigiProcessor:

Public Member Functions
virtual Processor *	newProcessor ()
virtual void	init ()
	Called at the begin of the job before anything is read. More...
virtual void	processRunHeader (LCRunHeader *run)
	Called for every run.
virtual void	processEvent (LCEvent *evt)
	Called for every event - the working horse.
virtual void	check (LCEvent *evt)
virtual void	end ()
	Called after data processing for clean up.
double	correctPhiRange (double Phi) const

Protected Attributes
std::string	_colNameVTX
std::string	_colNameSIT
std::string	_colNameSET
std::string	_outColNameVTX
std::string	_outColNameSIT
std::string	_outColNameSET
std::vector< int >	_activeSETLayers
int	_nRun
int	_nEvt
int	_smearAlongLadders
int	_debug
int	_removeDRays
float	_pointResoRPhi
float	_pointResoRPhi_VTX
float	_pointResoRPhi_SIT
float	_pointResoRPhi_SET
float	_pointResoZ
float	_pointResoZ_VTX
float	_pointResoZ_SIT
float	_pointResoZ_SET
float	_momCut
FloatVec	_vxdEff
std::vector< std::pair< long, long > >	_vxdCount
gsl_rng *	_rng

Detailed Description

======= VTXDigiProcessor ==========
Produces SIT & VTX TrackerHit collection from SimTrackerHit collections.

The positions of "digitized" TrackerHits are obtained by gaussian smearing positions of SimTrackerHits in r-phi and z according to the specified point resolutions. Each created TrackerHit is assigned the type via method TrackerHitImpl::setType(int type). The TrackerHit type is encoded in the following way :
type = 100 + layer_index_vtx for vertex hits (layer_index_vtx = 1...5)
type = 400 + layer_index_sit for SIT hits (layer_index_sit = 1,2)
To access this type use method TrackerHit::getType()

Input collections and prerequisites

Processor requires collections of SimTrackerHits in vertex detector and SIT

Output

Processor produces collection of digitized TrackerHits in the vertex detector and SIT

Parameters

VTXCollectionName	The name of input collection of VTX SimTrackerHits (default name vxd00_VXD)
SITCollectionName	The name of input collection of SIT SimTrackerHits (default name sit00_SIT)
VTXHitCollection	The name of output collection of digitized VTX TrackerHits (default name VTXTrackerHits)
SITHitCollection	The name of output collection of digitized SIT TrackerHits (default name SITTrackerHits)
PointResolutionRPhi_VTX	Point resolution in r-phi for the vertex detector (in mm) (default value 0.004)
PointResolutionZ_VTX	Point resolution in z for the vertex detector (in mm) (default value 0.004)
HitEfficiencyPerLayer_VTX	hit efficiencies per layer in the VTX (default value 1. 1. 1. 1. 1. 1.)
PointResolutionRPhi_SIT	Point resolution in r-phi for SIT (in mm) (default value 0.01)
PointResolutionZ_SIT	Point resolution in z for SIT (in mm) (default value 0.01)
RemoveDrays	When this flag is set to 1 hits produced by delta-electrons are removed from output collections (default value 0)
MomentumCutForDRays	The upper cut on delta-electron momentum (in MeV) (default value 10)
Debug	When this flag is set to one, debugging regime is enabled with a lot of printouts (default value is 0)

F.Gaede: 2008-11-28 added parameter ActiveSETLayers: only SET hits from these layers will be digitized -> used to mimic the stereo layers strip detectors (eg. use only hits from layer 1 )

Author

A. Raspereza, MPI (Munich)

Member Function Documentation

virtual void VTXDigiProcessor::init ( )

virtual

Called at the begin of the job before anything is read.

Use to initialize the processor, e.g. book histograms.

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The documentation for this class was generated from the following file:

• VTXDigiProcessor.h