Identification of Boosted, Hadronically Decaying W Bosons and Comparisons with ATLAS Data Taken at √s̅ = 8 TeV

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Identification of Boosted, Hadronically Decaying W Bosons and Comparisons with ATLAS Data Taken at √s̅ = 8 TeV

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Title: Identification of Boosted, Hadronically Decaying W Bosons and Comparisons with ATLAS Data Taken at √s̅ = 8 TeV
Author(s):
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Aben, R.;
Abolins, M.;
AbouZeid, O. S.;
Izen, Joseph M. (UT Dallas);
Leyton, Michael (UT Dallas);
Meirose, Bernhard (UT Dallas);
Namasivayam, Harisankar (UT Dallas);
Reeves, Kendall (UT Dallas);
ATLAS Collaboration
Item Type: article
Keywords: Show Keywords
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 √s̅ = 8 TeV. 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.
Publisher: Springer New York LLC
ISSN: 1434-6044
Persistent Link: http://dx.doi.org/10.1140/epjc/s10052-016-3978-z
http://hdl.handle.net/10735.1/5590
Bibliographic Citation: Aad, G., B. Abbott, J. Abdallah, et al. 2016. "Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s̅ = 8 TeV." European Physical Journal C 76(3), doi:10.1140/epjc/s10052-016-3978-z
Terms of Use: CC BY 4.0 (Attribution)
©2016 CERN for the benefit of the ATLAS collaboration.

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)