StEmcFilter Class Reference

#include <StEmcFilter.h>

Inheritance diagram for StEmcFilter:

Public Member Functions
	StEmcFilter (Int_t=0)
	StEmcFilter constructor. More...
	~StEmcFilter ()
	StEmcFilter destructor.
void	initEmcTowers (StEvent *, Int_t=0)
	Use this function before using accept(), getNTracksTower() and getPtTower() methods for towers. This initializes all vectors necessary to these methods.
Bool_t	accept (StEvent *)
	Returns kTRUE/kFALSE if StEvent is accepted.
Bool_t	accept (StTrack *)
	Returns kTRUE/kFALSE if StTrack is accepted.
Bool_t	accept (StMcEvent *)
	Returns kTRUE/kFALSE if StMcEvent is accepted.
Bool_t	accept (StMcTrack *)
	Returns kTRUE/kFALSE if StMcTrack is accepted.
Bool_t	accept (StV0Vertex *)
	Returns kTRUE/kFALSE if StV0vertex is accepted.
Bool_t	accept (Int_t)
	Returns kTRUE/kFALSE if tower with correspondent id is accepted;.
Bool_t	accept (Int_t, Int_t, Int_t)
	Returns kTRUE/kFALSE if tower with correspondent module, eta and sub is accepted;.
Int_t	getNTracksTower (Int_t)
	Returns number of tracks pointing to the tower with given id.
Int_t	getNTracksTower (Int_t, Int_t, Int_t)
	Returns number of tracks pointing to the tower with given module, eta, sub.
Float_t	getPtTower (Int_t)
	Returns the total pt from projected tracks in tower with id.
Float_t	getPtTower (Int_t, Int_t, Int_t)
	Returns the total pt from projected tracks in tower with with module, eta, sub.
EmcStatus	getEmcStatus (Int_t, Int_t)
	Return EMC status (kGOOD, kBAD, kOTHER) for a given detector and bin. More...
Int_t	getCentralityBin ()
	Return centrality bin.
Int_t	getCentrality (Int_t i)
	Return centrality definition for a given bin.
Bool_t	getTrackId (StTrack *, Float_t &, Int_t &)
	Return track id based on dE/dX. More...
Bool_t	getTrackId (StTrack *, Int_t &, Float_t &, Float_t &, Int_t &, Int_t *, Float_t *)
	Return track id based on dE/dX and nsigma for each particle. More...
Float_t	getEmcETotal (StEvent *)
	Return total energy on EMC.
Float_t	getFraction (Int_t, Int_t, Int_t=0)
	Return fraction of EMC live on a given detector and eta bin. More...
Float_t	getWestFraction (Int_t=1)
	Return fraction of EMC live on west side of STAR. More...
Float_t	getEastFraction (Int_t=1)
	Return fraction of EMC live on east side of STAR. More...
Float_t	getTotalFraction (Int_t=1)
	Return fraction of EMC live on STAR. More...
St_emcStatus *	getBemcStatus ()
	get tower status (need to get the table from database)
St_emcStatus *	getBprsStatus ()
	get pre-shower status (need to get the table from database)
St_smdStatus *	getBsmdeStatus ()
	get SMD-eta status (need to get the table from database)
St_smdStatus *	getBsmdpStatus ()
	get SMD-phi status (need to get the table from database)
Bool_t	getEmcPresent ()
	requires EMC data on event (kTRUE, kFALSE). Default value is kTRUE.
Bool_t	getHaveVertex ()
	requires a valid vertex (kTRUE, kFALSE). Default is kTRUE.
Bool_t	getHavePrimaries ()
	requires at least one primary track (kTRUE, kFALSE). Default is kTRUE.
Float_t	getZVertexCut ()
	Z Vertex threshold in cm. Default is 20 cm.
Float_t	getEmcETotalMin ()
	minimum energy on EMC in GeV. Default is 0.
Float_t	getEmcETotalMax ()
	maximum energy on EMC in GeV. Default is 100000.
Float_t	getMinMult ()
	minimum multiplicity. Default is 0.
Float_t	getMaxMult ()
	maximum multiplicity. Default is 100000.
Float_t	getBField ()
	just get the BField value for track projection in tesla. Default is 0.5 tesla.
Float_t	getDCACut ()
	DCA cut on track in cm. Default is 300000.
Float_t	getPtCut ()
	transverse momentm cut (GeV/c). Default is 0.
Float_t	getPtCutMax ()
	maximumum transverse momentm cut (GeV/c). Default is 1000.
Float_t	getEtaMin ()
	minimum eta of the track (momentum). Default is -10000.
Float_t	getEtaMax ()
	maximum eta of the track (momentum). Default is +10000.
Int_t	getFitPointsCut ()
	number of fit points in the track. Default is 0.
Bool_t	getMustProjectEmc ()
	requires that the track is projected on a valid EMC tower (kTRUE, kFALSE). Default is kTRUE.
Float_t	getdEdXScale ()
	scale factor to BetheBlock function to maker proper dE/dX selection. Default is 1.
Int_t	getPointsdEdX ()
	minimum number of points to make dE/dX id. Default is 0.
Float_t	getdEdXPMax ()
	maximum momentum to make dE/dX id. Default is 1 GeV/c.
Float_t	getdEdXCut ()
	minimum dE/dX value to make dE/dX id. Default is 0.
Float_t	getdEdXNSigma ()
	maximum number of sigmas to get a valid dE/dX id.
Float_t	getV0Pt ()
	get minimum pt for V0
Bool_t	getV0TrackProjectOnEmc ()
	At least one of the tracks should project on EMC patch. Default is kTRUE.
Int_t	getMaxTracksPerTower ()
	maximum number of tracks projected in tower
Float_t	getEMin ()
	minimum energy in the tower
Float_t	getEMax ()
	maximum energy in the tower
Float_t	getPtMin ()
	minimum pt sum from tracks in the tower
Float_t	getPtMax ()
	maximum pt sum from tracks in the tower
Bool_t	getPNeighbor ()
	Primary neighbors clear (3x3). Default is kTRUE.
Bool_t	getSNeighbor ()
	Seconday neighbors clear (5x5). Default is kFALSE.
Bool_t	getTNeighbor ()
	Terciary neighbors clear (7x7). Default is kFALSE.
Bool_t	getOnlyHadrons ()
	select only hadronic tracks (kTRUE, kFALSE). pi0 is excluded from the list. Default is kTRUE
McCharge	getMcChargeType ()
	select the McTrack by charge type (kNEGATIVE, kNEUTRAL, kPOSITIVE, kCHARGED, kALL). Default is kALL.
Bool_t	getMcMustProjectEmc ()
	requires that the McTrack is projected on a valid EMC tower (kTRUE, kFALSE). Default is kTRUE.
Float_t	getMcPtCut ()
	transverse momentm cut (GeV/c). Default is 0.
Float_t	getMcEtaMin ()
	minimum eta of the McTrack (momentum). Default is -10000.
Float_t	getMcEtaMax ()
	maximum eta of the McTrack (momentum). Default is +10000.
void	printCuts ()
	Print filter parameters.
void	setBemcStatus (St_emcStatus *st)
	Set tower status (need to get the table from database)
void	setBprsStatus (St_emcStatus *st)
	Set pre-shower status (need to get the table from database)
void	setBsmdeStatus (St_smdStatus *st)
	Set SMD-eta status (need to get the table from database)
void	setBsmdpStatus (St_smdStatus *st)
	Set SMD-phi status (need to get the table from database)
void	setPrintLog (Bool_t a)
	Print log if event is rejected.
void	setEmcPresent (Bool_t a)
	requires EMC data on event (kTRUE, kFALSE). Default value is kTRUE.
void	setHaveVertex (Bool_t a)
	requires a valid vertex (kTRUE, kFALSE). Default is kTRUE.
void	setHavePrimaries (Bool_t a)
	requires at least one primary track (kTRUE, kFALSE). Default is kTRUE.
void	setZVertexCut (Float_t a)
	Z Vertex threshold in cm. Default is 20 cm.
void	setEmcETotalMin (Float_t a)
	minimum energy on EMC in GeV. Default is 0.
void	setEmcETotalMax (Float_t a)
	maximum energy on EMC in GeV. Default is 100000.
void	setMinMult (Float_t a)
	minimum multiplicity. Default is 0.
void	setMaxMult (Float_t a)
	maximum multiplicity. Default is 100000.
void	setBField (Float_t a)
	just set the BField value for track projection in tesla. Default is 0.5 tesla.
void	addTriggerMask (UInt_t mask)
	adds one trigger mask for trigger selection. Can add up to 20 masks. Default is all trigger masks.
void	clearTriggerMask ()
	Resets trigger masks.
void	setDCACut (Float_t a)
	DCA cut on track in cm. Default is 300000.
void	setPtCut (Float_t a)
	transverse momentm cut (GeV/c). Default is 0.
void	setPtCutMax (Float_t a)
	maximumum transverse momentm cut (GeV/c). Default is 1000.
void	setEtaMin (Float_t a)
	minimum eta of the track (momentum). Default is -10000.
void	setEtaMax (Float_t a)
	maximum eta of the track (momentum). Default is +10000.
void	setFitPointsCut (Int_t a)
	number of fit points in the track. Default is 0.
void	setMustProjectEmc (Bool_t a)
	requires that the track is projected on a valid EMC tower (kTRUE, kFALSE). Default is kTRUE.
void	setdEdXScale (Float_t a)
	scale factor to BetheBlock function to maker proper dE/dX selection. Default is 1.
void	setPointsdEdX (Int_t a)
	minimum number of points to make dE/dX id. Default is 0.
void	setdEdXPMax (Float_t a)
	maximum momentum to make dE/dX id. Default is 1 GeV/c.
void	setdEdXCut (Float_t a)
	minimum dE/dX value to make dE/dX id. Default is 0.
void	setdEdXNSigma (Float_t a)
	maximum number of sigmas to get a valid dE/dX id.
void	setV0Pt (Float_t a)
	Set minimum pt for V0.
void	setV0TrackProjectOnEmc (Bool_t a)
	At least one of the tracks should project on EMC patch. Default is kTRUE.
void	setMaxTracksPerTower (Int_t a)
	maximum number of tracks projected in tower
void	setEMin (Float_t a)
	minimum energy in the tower
void	setEMax (Float_t a)
	maximum energy in the tower
void	setPtMin (Float_t a)
	minimum pt sum from tracks in the tower
void	setPtMax (Float_t a)
	maximum pt sum from tracks in the tower
void	setPNeighbor (Bool_t a)
	Primary neighbors clear (3x3). Default is kTRUE.
void	setSNeighbor (Bool_t a)
	Seconday neighbors clear (5x5). Default is kFALSE.
void	setTNeighbor (Bool_t a)
	Terciary neighbors clear (7x7). Default is kFALSE.
void	setOnlyHadrons (Bool_t a)
	select only hadronic tracks (kTRUE, kFALSE). pi0 is excluded from the list. Default is kTRUE
void	setMcChargeType (McCharge a)
	select the McTrack by charge type (kNEGATIVE, kNEUTRAL, kPOSITIVE, kCHARGED, kALL). Default is kALL.
void	setMcMustProjectEmc (Bool_t a)
	requires that the McTrack is projected on a valid EMC tower (kTRUE, kFALSE). Default is kTRUE.
void	setMcPtCut (Float_t a)
	transverse momentm cut (GeV/c). Default is 0.
void	setMcEtaMin (Float_t a)
	minimum eta of the McTrack (momentum). Default is -10000.
void	setMcEtaMax (Float_t a)
	maximum eta of the McTrack (momentum). Default is +10000.

Detailed Description

Author

Alexandre A. P. Suaide

Marcia M. de Moura

This class makes general event selection for EMC data. It also gives acceptance correction factors because of limited EMC coverage. This class also can be used to perform StMcEvent and StMcTrack (simulation) selection in a limited way.

To use this class, just do:

StEmcFilter filter = new StEmcFilter();
filter->setFILTERPARAM(value);
if(filter->accept(StEvent)) .... event is accepted
if(filter->accept(StTrack*)) .... track is accepted
filter->initEmcTowers(StEvent*) if(filter->accept(module, eta, sub)) .... tower is accepted

It is also possible to use this filter to make track identification based on dE/dX information. To do this just write:

Float_t mass; Int_t geant_id; filter->GetTrackId(StTrack pointer, mass, geant_id);

The geant_id is obtained based on the dE/dX cuts set in the filter.

Definition at line 56 of file StEmcFilter.h.

Constructor & Destructor Documentation

StEmcFilter::StEmcFilter

(

Int_t

mode = 0

)

StEmcFilter constructor.

Parameters

mode	defines the initial TOWER configuration 0 = 2001 run (default) 1 = west side only 2 = full EMC

Definition at line 38 of file StEmcFilter.cxx.

Member Function Documentation

Float_t StEmcFilter::getEastFraction

(

Int_t

det = 1

)

Return fraction of EMC live on east side of STAR.

Parameters

det	is the detector number (1 = bemc, 2 = bprs, 3 = bsmde, 4 = bsmdp)

Definition at line 777 of file StEmcFilter.cxx.

References getFraction().

Referenced by getTotalFraction().

EmcStatus StEmcFilter::getEmcStatus	(	Int_t	det,
		Int_t	id
	)

Return EMC status (kGOOD, kBAD, kOTHER) for a given detector and bin.

Parameters

det	is the detector number (1 = bemc, 2 = bprs, 3 = bsmde, 4 = bsmdp)
id	is the software id of the tower/strip you would like to get the status

If no emcRunning or smdRunning table is set the default values are the 24 modules of 2001 run for towers only

Definition at line 662 of file StEmcFilter.cxx.

Referenced by accept(), getFraction(), and initEmcTowers().

Float_t StEmcFilter::getFraction	(	Int_t	det,
		Int_t	etabin,
		Int_t	side = 0
	)

Return fraction of EMC live on a given detector and eta bin.

Parameters

det	is the detector number (1 = bemc, 2 = bprs, 3 = bsmde, 4 = bsmdp)
etabin	is the etabin number
side	is the EMC side (0 = west side, 1 = east side)

Definition at line 735 of file StEmcFilter.cxx.

References getEmcStatus().

Referenced by getEastFraction(), and getWestFraction().

Float_t StEmcFilter::getTotalFraction

(

Int_t

det = 1

)

Return fraction of EMC live on STAR.

Parameters

det	is the detector number (1 = bemc, 2 = bprs, 3 = bsmde, 4 = bsmdp)

Definition at line 793 of file StEmcFilter.cxx.

References getEastFraction(), and getWestFraction().

Bool_t StEmcFilter::getTrackId	(	StTrack *	track,
		Float_t &	mass,
		Int_t &	id
	)

Return track id based on dE/dX.

Parameters

track	is the pointer to StTrack
mass	is the mass of idetified track
id	is the geant id of the identified track

Definition at line 532 of file StEmcFilter.cxx.

Bool_t StEmcFilter::getTrackId	(	StTrack *	track,
		Int_t &	nPoints,
		Float_t &	dEdX,
		Float_t &	mass,
		Int_t &	id,
		Int_t *	idOrder,
		Float_t *	nSigmaFinal
	)

Return track id based on dE/dX and nsigma for each particle.

Parameters

track	is the pointer to StTrack
nPoints	is the number of dEdX points in the track
dEdX	is the dE/dX value for that track
mass	is the mass of idetified track
id	is the geant id of the identified track
*idOrder	is a pointer to an array with the id's in order of identification
*nSigmaFinal	is a pointer to an array with the number of sigma for each tested particle
nSigmaFinal	is the array that contains the number of sigmas for pions, protons, kaons and electrons (in this order)

To the present, only pions, protons, kaons and electrons are tested.

Definition at line 553 of file StEmcFilter.cxx.

Float_t StEmcFilter::getWestFraction

(

Int_t

det = 1

)

Return fraction of EMC live on west side of STAR.

Parameters

det	is the detector number (1 = bemc, 2 = bprs, 3 = bsmde, 4 = bsmdp)

Definition at line 761 of file StEmcFilter.cxx.

References getFraction().

Referenced by getTotalFraction().

---

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

• StEmcUtil/filters/StEmcFilter.h
• StEmcUtil/filters/StEmcFilter.cxx