Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at s√=7 TeV with the ATLAS Detector

UNSPECIFIED (2012) Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at s√=7 TeV with the ATLAS Detector. Physical review letters, 109 (21): 211802. ISSN 1079-7114

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Abstract

A search for direct pair production of supersymmetric top squarks (t˜1) is presented, assuming the t˜1 decays into a top quark and the lightest supersymmetric particle, χ˜01, and that both top quarks decay to purely hadronic final states. A total of 16 (4) events are observed compared to a predicted standard model background of 13.5+3.7−3.6(4.4+1.7−1.3) events in two signal regions based on ∫Ldt=4.7 fb−1 of pp collision data taken at s√=7 TeV with the ATLAS detector at the LHC. An exclusion region in the t˜1 versus χ˜01 mass plane is evaluated: 370<mt˜1<465 GeV is excluded for mχ˜01∼0 GeV while mt˜1=445 GeV is excluded for mχ˜01≤50 GeV.

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:

68015

Deposited By:

ep_importer_pure

Deposited On:

13 Dec 2013 00:03

Refereed?:

Yes

Published?:

Published

Last Modified:

22 Jul 2024 00:01

URI:

https://eprints.lancs.ac.uk/id/eprint/68015