Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton+jets Channel with the ATLAS Detector

UNSPECIFIED (2012) Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton+jets Channel with the ATLAS Detector. Physical review letters, 108 (26): 261802. ISSN 1079-7114

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Abstract

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¯′→W+bW−b¯. The search is based on 1.04 fb−1 of proton-proton collisions at 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.

Item Type:

Journal Article

Journal or Publication Title:

Physical review letters

Additional Information:

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2012 CERN, for the ATLAS Collaboration

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/3100/3100

Subjects:

?? general physics and astronomyphysics and astronomy(all) ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

68128

Deposited By:

ep_importer_pure

Deposited On:

18 Dec 2013 14:11

Refereed?:

Yes

Published?:

Published

Last Modified:

02 Oct 2024 23:59

URI:

https://eprints.lancs.ac.uk/id/eprint/68128