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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 Detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 3034
2012 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 108, no 26, 261802- p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2012. Vol. 108, no 26, 261802- p.
Keyword [en]
Top-Quark
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-99503DOI: 10.1103/PhysRevLett.108.261802ISI: 000305689400013Scopus ID: 2-s2.0-84863327716OAI: oai:DiVA.org:kth-99503DiVA: diva2:542380
Note
QC 20120731. Author count: 3034Available from: 2012-07-31 Created: 2012-07-31 Last updated: 2017-12-07Bibliographically approved

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Strandberg, Jonas

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