Calculates the Vertex Charge. More...
#include <VertexChargeProcessor.h>
Protected Attributes | |
| std::string | _JetRPColName |
| std::string | _DecayChainRPColName |
| std::string | _RelationColName |
| std::string | _IPVertexCollectionName |
| std::string | _VertexChargeCollectionName |
| std::vector< std::string > | _JetVariableNames |
|
vertex_lcfi::Algo< DecayChain *, double > * | _VertexCharge |
|
vertex_lcfi::Algo< DecayChain *, DecayChain * > * | _Attach |
| bool | _ChargeAddAllTracksFromSecondary |
| double | _ChargeLoDCutmin |
| double | _ChargeLoDCutmax |
| double | _ChargeCloseapproachCut |
| int | _nRun |
| int | _nEvt |
Detailed Description
Calculates the Vertex Charge.
The processor calculated the vertex charge of a Decay Chain by using the tracks and the verteces present in the chain. Two logically slightly different algorithms are used depending on the hypothesis of a B or C quark Vertex. In the B hypothesis we include the inner verteces, in the C we do not include them. This choice is controlled by the parameter ChargeAllSecondaryTracks.
Input
- A collection of ReconstructedParticles that represents the jets in the event (obtained from a jet finder, say SatoruJetFinderProcessor, although in order not to break the reconstruction chain we suggest you run this after the flavour tagging. In this way the LCFI chain remains intact).
- A collection of vertices that contains the per event primary vertices; one for each event. (optional) This collection is filled in the vertex_lcfi::PerEventIPFitter processor.
- A collection of decay chains as filled by the the ZVTOPZVRESProcessor or ZVTOPZVKINProcessor.
Output
The processor writes into the selected lcio output file. All the values calculated by the processor are saved in the same LCFloatVec collection. The default name of the output collection is Charge.Although this is changed in the steering files to something more appropriate, depending on B or C calculation. For more details see the interface documentation.
- Parameters
-
VertexChargeCollection collection where results will be stored. ChargeAllSecondaryTracks include or exclude tracks in the inner vertices for the track attachment. ChargeCloseapproachCut upper cut on track distance of closest approach to the seed axis in the calculation of the vertex charge variable, used by vertex_lcfi::TrackAttach. ChargeLoDCutmax Cut determining the maximum L/D for the Charge, used by vertex_lcfi::TrackAttach (when calculating C-Charge) ChargeLoDCutmin Cut determining the minimum L/D for the Charge, used by vertex_lcfi::TrackAttach (when calculating C-Charge)
Definition at line 44 of file VertexChargeProcessor.h.
The documentation for this class was generated from the following files:
