Performance of tau-lepton reconstruction and identification in CMS - INSPIRE

DataBETA

Performance of tau-lepton reconstruction and identification in CMS

CMS

Collaboration

Sep, 2011

32 pages

Published in:

JINST 7 (2012) P01001

Published: Jan, 2012

e-Print:

1109.6034 [physics.ins-det]

DOI:

10.1088/1748-0221/7/01/P01001

Report number:

CERN-PH-EP-2011-137,
CMS-TAU-11-001

Experiments:

CERN-LHC-CMS

View in:

reference search316 citations

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Abstract: (arXiv)

The performance of tau-lepton reconstruction and identification algorithms is studied using a data sample of proton-proton collisions at

\sqrt{s}

=7 TeV, corresponding to an integrated luminosity of 36 inverse picobarns collected with the CMS detector at the LHC. The tau leptons that decay into one or three charged hadrons, zero or more short-lived neutral hadrons, and a neutrino are identified using final-state particles reconstructed in the CMS tracker and electromagnetic calorimeter. The reconstruction efficiency of the algorithms is measured using tau leptons produced in Z-boson decays. The tau-lepton misidentification rates for jets and electrons are determined.

Si microstrip and pad detectors
Calorimeter methods
Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
tau: particle identification
calorimeter: electromagnetic
Z0: decay
CMS
performance
efficiency: momentum dependence
track data analysis

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