Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton plus jets Channel with the ATLAS DetectorVise andre og tillknytning
2012 (engelsk)Inngår i: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 108, nr 26, s. 261802-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
A search is presented for production of a heavy up-type quark (t') together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t'(t) over bar' -> W(+)bW(-)(b) over bar. The search is based on 1.04 fb(-1) of proton-proton collisions at root s = 7 TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton + jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum, and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit of 404 GeV is set for the mass of the t' quark.
sted, utgiver, år, opplag, sider
2012. Vol. 108, nr 26, s. 261802-
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-177727DOI: 10.1103/PhysRevLett.108.261802ISI: 000305689400013OAI: oai:DiVA.org:uu-177727DiVA, id: diva2:541559
2012-07-192012-07-192017-12-07bibliografisk kontrollert