L3Tracks

The L3Tracks branch is a TClonesArray of L3 tracks. All methods in the Method used column of this table are member functions of L3TrackFit, accessible in the L3TrackPhysicsResults via get_Track(). For example, nHitsZ() is actually get_Track().nHitsZ().

Header file: trigsimcert/L3Trk.hpp

Package containing the class used to fill the chunk read: l3ftrack_phys_results

Information taken from l3ftrack_base/l3ftrack_base/L3TrackFit.hpp

Accessor	Method used
Et()	$\vert$1./PtInv()$\vert$	float	transverse momentum
Eta()	from getParam(L3TrackParams::TANL)	float	pseudorapidity
Phi()	getParam(L3TrackParams::PHI)	float	azimuthal angle
E()	from Et(), Eta()	float	energy
Px()	from Et(), Phi()	float	$x$ component of momentum
Py()	from Et(), Phi()	float	$y$ component of momentum
Pz()	from Et(), Eta()	float	$z$ component of momentum
ToolName()	l3mapIter-$>$first	string	trigger list name of the physics tool that produced the candidate
PtInv()	getParam(L3TrackParams::PTINV)	double	inverse transverse momentum
Z()	getParam(L3TrackParams::Z)	double	$z$ coordinate (in cm)
DCA()	getParam(L3TrackParams::DCA)	double	distance of closest approach
tanl()	from Eta()	float	$\tan \lambda$
ChiSq()	ChiSqXY() $+$ ChiSqZ()	float	Sum of ChiSqXY() and ChiSqZ()
ChiSqXY()	getChiSqXY()	float	axial fit $\chi^2$
ChiSqZ()	getChiSqZ()	float	stereo fit $\chi^2$
ValidFit()	ValidXYFit() && ValidZFit()	bool	both axial and stereo fits were successful
ValidXYFit()	isValidXY()	bool	the axial fit was successful
ValidZFit()	isValidZ()	bool	the stereo fit was successful
nHitsZ()	nHitsZ()	int	number of hits in stereo layers
nHitsXY()	nHitsXY()	int	number of hits in axial layers
nSMTHitsZ()	nSMTHitsZ()	int	number of hits in SMT stereo layers
nSMTHitsXY()	nSMTHitsXY()	int	number of hits in SMT axial layers