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arXiv · 1301.1583

Search for single b*-quark production with the ATLAS detector at sqrt(s)=7 TeV

ATLAS Collaboration
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Abstract

The results of a search for an excited bottom-quark b* in pp collisions at sqrt(s)=7 TeV, using 4.7/fb 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.

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ATLAS Collaboration. 2013-01-08. Search for single b*-quark production with the ATLAS detector at sqrt(s)=7 TeV. https://doi.org/10.1016/j.physletb.2013.03.016

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