Reconstruction and identification of $\tau$ lepton decays to hadrons and $\nu_\tau$ at CMS

Khachatryan, Vardan

doi:10.1088/1748-0221/11/01/P01019

Reconstruction and identification of $$\tau$$ lepton decays to hadrons and $$\nu_\tau$$ at CMS

Journal Article · Fri Jan 29 00:00:00 EST 2016 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/11/01/P01019· OSTI ID:1226349

Khachatryan, Vardan ^[1]

Yerevan Physics Inst. (YerPhI) (Armenia). et al.

This paper describes the algorithms used by the CMS experiment to reconstruct and identify τ→ hadrons + v_t 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.

View Accepted Manuscript (DOE)

Research Organization:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1226349

Alternate ID(s):: OSTI ID: 22499844

Report Number(s):: FERMILAB-PUB--15-460-CMS; arXiv eprint number arXiv:1510.07488

Journal Information:: Journal of Instrumentation, Journal Name: Journal of Instrumentation Vol. 11; ISSN 1748-0221

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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