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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inEuropean physical journal. C, Particles and fields, vol. 76, no. 3, 154
Collection
  • Open Access - SCOAP3
Publication date2016
Abstract

This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb -1 of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy s=8TeV . 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 W 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.

Citation (ISO format)
ATLAS Collaboration. Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV. In: European physical journal. C, Particles and fields, 2016, vol. 76, n° 3, p. 154. doi: 10.1140/epjc/s10052-016-3978-z
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ISSN of the journal1434-6044
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