Identification of boosted, hadronically decaying <i>W</i> bosons and comparisons with ATLAS data taken at √<i>s</i>=8 TeV



Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Aben, R, Abolins, M, AbouZeid, OS, Abramowicz, H, Abreu, H, Abreu, R
et al (show 2854 more authors) (2016) Identification of boosted, hadronically decaying <i>W</i> bosons and comparisons with ATLAS data taken at √<i>s</i>=8 TeV. EUROPEAN PHYSICAL JOURNAL C, 76 (3). 154-.

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Abstract

This paper reports a detailed study of techniques for identifying boosted, hadronically decaying <i>W</i> bosons using 20.3 fb[Formula: see text] of proton-proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy [Formula: see text]. A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying <i>W</i> bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2-4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques.

Item Type: Article
Additional Information: 53 pages plus author list + cover page (70 pages total), 25 figures, 8 tables, submitted to Eur. Phys. J. C, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2015-03/
Uncontrolled Keywords: Atlas Collaboration, Atlas Collaboration, Atlas Collaboration
Depositing User: Symplectic Admin
Date Deposited: 20 Mar 2017 10:23
Last Modified: 11 Oct 2023 16:58
DOI: 10.1140/epjc/s10052-016-3978-z
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3006521