Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector

A search is presented for pair production of a new heavy quark (Q) that decays into a W boson and a light quark (q) in the final state where one W boson decays leptonically (to an electron or muon plus a neutrino) and the other W boson decays hadronically. The analysis is performed using an integrat...

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Main Author: Taylor, Frank E.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2016
Online Access:http://hdl.handle.net/1721.1/101617
https://orcid.org/0000-0002-7586-7253
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author Taylor, Frank E.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Taylor, Frank E.
author_sort Taylor, Frank E.
collection MIT
description A search is presented for pair production of a new heavy quark (Q) that decays into a W boson and a light quark (q) in the final state where one W boson decays leptonically (to an electron or muon plus a neutrino) and the other W boson decays hadronically. The analysis is performed using an integrated luminosity of 20.3  fb[superscript −1] of pp collisions at √s = 8  TeV collected by the ATLAS detector at the LHC. No evidence of Q[bar over Q] production is observed. New chiral quarks with masses below 690 GeV are excluded at 95% confidence level, assuming BR(Q → Wq) = 1. Results are also interpreted in the context of vectorlike quark models, resulting in the limits on the mass of a vectorlike quark in the two-dimensional plane of BR(Q → Wq) versus BR(Q → Hq).
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spelling mit-1721.1/1016172022-10-01T17:06:26Z Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A search is presented for pair production of a new heavy quark (Q) that decays into a W boson and a light quark (q) in the final state where one W boson decays leptonically (to an electron or muon plus a neutrino) and the other W boson decays hadronically. The analysis is performed using an integrated luminosity of 20.3  fb[superscript −1] of pp collisions at √s = 8  TeV collected by the ATLAS detector at the LHC. No evidence of Q[bar over Q] production is observed. New chiral quarks with masses below 690 GeV are excluded at 95% confidence level, assuming BR(Q → Wq) = 1. Results are also interpreted in the context of vectorlike quark models, resulting in the limits on the mass of a vectorlike quark in the two-dimensional plane of BR(Q → Wq) versus BR(Q → Hq). United States. Dept. of Energy National Science Foundation (U.S.) 2016-03-07T17:32:10Z 2016-03-07T17:32:10Z 2015-12 2015-09 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/101617 Aad, G., B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. AbouZeid, et al. “Search for Pair Production of a New Heavy Quark That Decays into a W Boson and a Light Quark in pp Collisions at √s = 8 TeV with the ATLAS Detector.” Phys. Rev. D 92, no. 11 (December 22, 2015). © 2015 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevD.92.112007 Physical Review D Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society American Physical Society
spellingShingle Taylor, Frank E.
Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title_short Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort search for pair production of a new heavy quark that decays into a w boson and a light quark in pp collisions at √s 8 tev with the atlas detector
url http://hdl.handle.net/1721.1/101617
https://orcid.org/0000-0002-7586-7253
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