Search for vector-boson resonances decaying to a top quark and bottom √ quark in the lepton plus jets final state in pp collisions at s = 13 TeV with the ATLAS detector

View/ Open
Issue Date
2019-01-10Author
Aaboud, M.
Rogan, Christopher
The ATLAS Collaboration
Publisher
Elsevier
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
© 2018 The Author(s). Published by Elsevier B.V.
Metadata
Show full item recordAbstract
A search for new charged massive gauge bosons, W, is performed with the ATLAS detector at the LHC. Data were collected in proton–proton collisions at a center-of-mass energy of √s = 13 TeV and correspond to an integrated luminosity of 36.1 fb−1. This analysis searches for W bosons in the W → t¯b decay channel in final states with an electron or muon plus jets. The search covers resonance masses between 0.5 and 5.0 TeV and considers right-handed W bosons. No significant deviation from the Standard Model (SM) expectation is observed and upper limits are set on the W → t¯b cross section times branching ratio and the W boson effective couplings as a function of the W boson mass. For right-handed W bosons with coupling to the SM particles equal to the SM weak coupling constant, masses below 3.15 TeV are excluded at the 95% confidence level. This search is also combined with a previously published ATLAS result for W → t¯b in the fully hadronic final state. Using the combined searches, right-handed W bosons with masses below 3.25 TeV are excluded at the 95% confidence level.
Description
This work is licensed under a Creative Commons Attribution 4.0 International License.
Collections
Citation
M. Aaboud et al., "Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in pp collisions at s=13 TeV with the ATLAS detector", Physics Letters B, Volume 788, 2019, Pages 347-370, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2018.11.032. (http://www.sciencedirect.com/science/article/pii/S0370269318308736)
Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.