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Type: Journal article
Title: Search for single b*-quark production with the ATLAS detector at √s = 7 TeV
Other Titles: Search for single b*-quark production with the ATLAS detector at root s = 7 TeV
Author: ATLAS Collaboration,
Aad, G.
Citation: Physics Letters B: Nuclear Physics and Particle Physics, 2013; 721(4-5):171-189
Publisher: Elsevier
Issue Date: 2013
ISSN: 0370-2693
Statement of
G. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni … M.J. White … et al. (ATLAS Collaboration)
Abstract: The results of a search for an excited bottom-quark b∗ in pp collisions at √ s = 7 TeV, using 4.7 fb −1 of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b∗-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on b∗-quark couplings for a range of b∗-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b∗ couplings, b∗ quarks with masses less than 870 GeV are excluded at the 95% credibility level.
Keywords: ATLAS; b*; single top-quark; excited quark
Rights: © 2013 CERN. Published by Elsevier B.V. Open access under CC BY-NC-ND license.
DOI: 10.1016/j.physletb.2013.03.016
Grant ID: ARC
Published version:
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Chemistry and Physics publications

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