Package RecoMuon/CosmicMuonProducer

Source code (CVS tag: @) - Administrative privileges

Description

This package is designed to reconstruct trajectories of muons from outside of the CMS detector, i.e. cosmic and beam-halo muons.

Public interface

• CosmicMuonSmoother : class to refit cosmic and beam-halo muon trajectories
• CosmicMuonTrajectoryBuilder : concrete class to build muon trajectories starting with TrajectorySeeds
• CosmicMuonUtilities : utility class containing common output and fit tools
• GlobalCosmicMuonTrajectoryBuilder : concrete class to build global cosmic muon trajectories containing information from both muon and tracker systems, starting from standalone cosmic muons

Modules

• CosmicMuonProducer : steering class to build and clean muon trajectories, store muon reco::TrackCollection into event

The default configuration file is

Inputs: TrajectorySeedCollection with label CosmicMuonSeed

Products: reco::TrackCollection with label cosmicMuons

• GlobalCosmicMuonProducer : steering class to build and clean global cosmic muon trajectories, and store muon reco::Track and reco::Muon collection into event

The default configuration file is

Inputs: Two reco::TrackCollections with label cosmicMuons and cosmictrackfinder

Products: reco::MuonCollection and reco::TrackCollection with label globalCosmicMuons

Unit tests and examples

• SegmentsToTracks.cfg : to build muon seeds and trajectories after muon local reconstruction
• globalCosmicTracks.cfg : to build global cosmic muon trajectories after standalone cosmic muon reconstruction
• validate.cfg : to validate the package by ploting the resolution and distribution of transverse momentum as well as some other parameters

Status and planned development

The package is stable.

Basic algorithm and structure are in good shape, good efficiency and accuracy have been achieved. Optimization is (always) under-going.

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Last updated: @ Author: Chang Liu