A tool implementing the recommended mu-jet overlap removal. More...
#include <MuJetOverlapTool.h>
Public Member Functions | |
| MuJetOverlapTool (const std::string &name) | |
| Create proper constructor for Athena. | |
| virtual StatusCode | findOverlaps (const xAOD::IParticleContainer &cont1, const xAOD::IParticleContainer &cont2) const override |
| Identify overlapping muons and jets. First, low-track-multiplicity jets are flagged if they overlap with muons. Second, muons are flagged if they overlap with the remaining jets. | |
| virtual StatusCode | findOverlaps (const xAOD::MuonContainer &muons, const xAOD::JetContainer &jets) const |
| Identify overlapping muons and jets. The above method calls this one. | |
Protected Member Functions | |
| virtual StatusCode | initializeDerived () override |
| Initialize the tool. | |
| const xAOD::Vertex * | getPrimVtx () const |
| Retrieve the primary vertex used to count jet tracks. | |
| int | getNumTracks (const xAOD::Jet &jet, size_t vtxIdx) const |
| Get the number of tracks in a jet w.r.t. requested vertex. | |
| float | getSumTrackPt (const xAOD::Jet &jet, size_t vtxIdx) const |
| Get the sum trk pt in a jet w.r.t. requested vertex. | |
A tool implementing the recommended mu-jet overlap removal.
This tool takes muons and jets and removes their overlaps based on various criteria including delta-R, jet track multiplicity, mu/jet PT ratio, JVT, and btagging results.
The procedure works as follows. 1. Remove non-btagged jets that overlap with muons. Matching is done with ghost association or flat delta-R. Jets are then rejected if they have low track multiplicity or if the muon has sufficient PT relative to the jet. 2. Remove muons from remaining non-pileup jets. Matching is done with either a flat delta-R or with the sliding delta-R cone (c1 + c2/pt).
To determine jet track multiplicity, the primary vertex is retrieved and used to query the NumTrkPt500 jet attribute.
Some special configuration properties UseSlidingDR - activate sliding dR cone (c1 + c2/muPt) SlidingDRC1 - c1 constant for sliding dR (default 0.04) SlidingDRC2 - c2 constant for sliding dR (default 10GeV) SlidingDRMaxCone - max cone size cutoff for sliding dR (default off) NumJetTrk - number of tracks required to give priorty to jet and remove the muon.
These properties are useful for specifying PV-related quantities so that the tool doesn't need to retrieve the PV: JetNumTrackDecoration - user-defined numTrk decoration JetSumTrackPTDecoration - user-defined sumTrkPt decoration
| ORUtils::MuJetOverlapTool::MuJetOverlapTool | ( | const std::string & | name | ) |
Create proper constructor for Athena.
Standalone constructor
1.6.1
