Measurement of the top quark pair cross section with ATLAS in pp collisions at root s=7 TeV using final states with an electron or a muon and a hadronically decaying tau lepton
2012 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 717, no 1-3, 89-108 p.Article in journal (Refereed) Published
A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb(-1). Events with an isolated electron or muon and a tau lePton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, sigma(t (t) over bar) = 186 +/- 13 (stat.) +/- 20 (syst.) +/- 7 (lumi.) pb, is in good agreement with the Standard Model prediction.
Place, publisher, year, edition, pages
2012. Vol. 717, no 1-3, 89-108 p.
Top quark physics, Cross section, Lepton plus tau
IdentifiersURN: urn:nbn:se:su:diva-84642DOI: 10.1016/j.physletb.2012.09.032ISI: 000310187700009OAI: oai:DiVA.org:su-84642DiVA: diva2:581051