Search for single b-quark production with the ATLAS detector at √s=7 TeV

ATLAS Collaboration

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)171-189
Number of pages19
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume721
Issue number4-5
DOIs
Publication statusPublished - Apr 25 2013
Externally publishedYes

Keywords

  • ATLAS
  • Excited quark
  • Single top-quark
  • b

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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