Header

UZH-Logo

Maintenance Infos

Performance of reconstruction and identification of $\tau$ leptons decaying to hadrons and $ν_\tau$ in pp collisions at $\sqrt s$ = 13 TeV


Abstract

The algorithm developed by the CMS Collaboration to reconstruct and identify $\tau$ leptons produced in proton-proton collisions at $\sqrt s=7 and 8 TeV$, via their decays to hadrons and a neutrino, has been significantly improved. The changes include a revised reconstruction of $π^0$ candidates, and improvements in multivariate discriminants to separate τ leptons from jets and electrons. The algorithm is extended to reconstruct $\tau$ leptons in highly Lorentz-boosted pair production, and in the high-level trigger. The performance of the algorithm is studied using proton-proton collisions recorded during 2016 at $\sqrt s=13 TeV$, corresponding to an integrated luminosity of $35.9 fb^{-1}$. The performance is evaluated in terms of the efficiency for a genuine $\tau$ lepton to pass the identification criteria and of the probabilities for jets, electrons, and muons to be misidentified as τ leptons. The results are found to be very close to those expected from Monte Carlo simulation.

Abstract

The algorithm developed by the CMS Collaboration to reconstruct and identify $\tau$ leptons produced in proton-proton collisions at $\sqrt s=7 and 8 TeV$, via their decays to hadrons and a neutrino, has been significantly improved. The changes include a revised reconstruction of $π^0$ candidates, and improvements in multivariate discriminants to separate τ leptons from jets and electrons. The algorithm is extended to reconstruct $\tau$ leptons in highly Lorentz-boosted pair production, and in the high-level trigger. The performance of the algorithm is studied using proton-proton collisions recorded during 2016 at $\sqrt s=13 TeV$, corresponding to an integrated luminosity of $35.9 fb^{-1}$. The performance is evaluated in terms of the efficiency for a genuine $\tau$ lepton to pass the identification criteria and of the probabilities for jets, electrons, and muons to be misidentified as τ leptons. The results are found to be very close to those expected from Monte Carlo simulation.

Statistics

Citations

Dimensions.ai Metrics
6 citations in Web of Science®
17 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

9 downloads since deposited on 19 Feb 2019
8 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Mathematical Physics
Physical Sciences > Instrumentation
Language:English
Date:2018
Deposited On:19 Feb 2019 10:12
Last Modified:29 Jul 2020 08:36
Publisher:IOP Publishing
ISSN:1748-0221
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1088/1748-0221/13/10/P10005

Download

Hybrid Open Access

Download PDF  'Performance of reconstruction and identification of $\tau$ leptons decaying to hadrons and $ν_\tau$ in pp collisions at $\sqrt s$ = 13 TeV'.
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher
Licence: Creative Commons: Attribution 3.0 Unported (CC BY 3.0)