Search for single b*-quark production with the ATLAS detector at root s=7 TeV
2013 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 721, no 4-5, 171-189 p.Article in journal (Refereed) Published
The results of a search for an excited bottom-quark b* in pp collisions at root 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.
Place, publisher, year, edition, pages
2013. Vol. 721, no 4-5, 171-189 p.
ATLAS, b*, Single top-quark, Excited quark
IdentifiersURN: urn:nbn:se:su:diva-90361DOI: 10.1016/j.physletb.2013.03.016ISI: 000318055900001OAI: oai:DiVA.org:su-90361DiVA: diva2:628184