# Reconstruction and identification of $τ$ lepton decays to hadrons and ν$_τ$ at CMS

CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Reconstruction and identification of $τ$ lepton decays to hadrons and ν$_τ$ at CMS. Journal of Instrumentation, 11(1):P01019.

## Abstract

This paper describes the algorithms used by the CMS experiment to reconstruct and identify $τ$ → hadrons + ν$_τ$ decays during Run 1 of the LHC. The performance of the algorithms is studied in proton-proton collisions recorded at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{−1}$. The algorithms achieve an identification efficiency of 50–60%, with misidentification rates for quark and gluon jets, electrons, and muons between per mille and per cent levels.

## Abstract

This paper describes the algorithms used by the CMS experiment to reconstruct and identify $τ$ → hadrons + ν$_τ$ decays during Run 1 of the LHC. The performance of the algorithms is studied in proton-proton collisions recorded at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{−1}$. The algorithms achieve an identification efficiency of 50–60%, with misidentification rates for quark and gluon jets, electrons, and muons between per mille and per cent levels.

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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2016 09 Jan 2017 10:25 09 Jan 2017 10:25 IOP Publishing 1748-0221 https://doi.org/10.1088/1748-0221/11/01/P01019

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