ITrkToLeptonPV Class Reference

Interaface class for xAOD/DAOD tools to match a track to a vertex assumed to be a Primary Vertex. More...

#include <ITrkToLeptonPV.h>

Inheritance diagram for ITrkToLeptonPV:

Collaboration diagram for ITrkToLeptonPV:

Public Member Functions
virtual std::unique_ptr< xAOD::Vertex >	matchTrkToPV (const xAOD::TrackParticle *, const xAOD::Vertex *, const xAOD::EventInfo *=0) const =0
	Method to match any tracks to a known Primary Vertex.
virtual std::unique_ptr< xAOD::Vertex >	npartVertex (const std::vector< const xAOD::TrackParticle * > &, const xAOD::EventInfo *=0) const =0
	Method to create a Primary Vertex using N(>=2) identified tracks (e.g.

Static Public Member Functions
static const InterfaceID &	interfaceID ()

Detailed Description

Interaface class for xAOD/DAOD tools to match a track to a vertex assumed to be a Primary Vertex.

This PV can be taken elsewhere or obtained with the tool itsels. Example: check compatibility of a track to PV obtained with 2 energetic leptons from Z decay. See README for more details

xAOD::EventInfo object is needed only in case of DxAOD, for xAOD case it can be omitted

Author: Vadim Kostyukhin vadim.nosp@m..kos.nosp@m.tyukh.nosp@m.in@c.nosp@m.ern.c.nosp@m.h

Definition at line 34 of file ITrkToLeptonPV.h.

Member Function Documentation

interfaceID()

const InterfaceID & ITrkToLeptonPV::interfaceID ( )

inlinestatic

Definition at line 36 of file ITrkToLeptonPV.h.

{ return IID_TrkToLeptonPV;}

matchTrkToPV()

virtual std::unique_ptr< xAOD::Vertex > ITrkToLeptonPV::matchTrkToPV ( const xAOD::TrackParticle * , const xAOD::Vertex * , const xAOD::EventInfo * = 0 ) const

pure virtual

Method to match any tracks to a known Primary Vertex.

A combined PV+track vertex is returned. Track compatibility to PV can be estimated with Chi2 of the PV+track vertex (NDF=2)

Implemented in TrkToLeptonPVTool.

npartVertex()

virtual std::unique_ptr< xAOD::Vertex > ITrkToLeptonPV::npartVertex ( const std::vector< const xAOD::TrackParticle * > & , const xAOD::EventInfo * = 0 ) const

pure virtual

Method to create a Primary Vertex using N(>=2) identified tracks (e.g.

leptons) and beam constraint, The obtained N-track PV can be used as input for matchTrkToPV() to check another track. However, better way to check another track compatibility is to call again npartVertex() with N+1 tracks and check the obtained Chi2 (NDF=2*N_trk-1)

Implemented in TrkToLeptonPVTool.

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

• ITrkToLeptonPV.h