Search for a heavy narrow resonance decaying to eμ, eτ, or μτ with the ATLAS detector in √s=7 TeV pp collisions at the LHC

Allison, Lee and Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Davidson, Ruth and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Smizanska, Maria and Walder, James (2013) Search for a heavy narrow resonance decaying to eμ, eτ, or μτ with the ATLAS detector in √s=7 TeV pp collisions at the LHC. Physics Letters B, 723 (1-3). pp. 15-32. ISSN 0370-2693

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Abstract

This Letter presents the results of a search for a heavy particle decaying into an e±μ∓, e±τ∓, or μ±τ∓ final state in pp collisions at √s = 7 TeV. The data were recorded with the ATLAS detector at the LHC during 2011 and correspond to an integrated luminosity of 4.6 fb−1. No significant excess above the Standard Model expectation is observed, and exclusions at 95% confidence level are placed on the cross section times branching ratio for the production of an R-parity-violating supersymmetric tau sneutrino. For a sneutrino mass of 500 (2000) GeV, the observed limits on the production cross section times branching ratio are 3.2 (1.4) fb, 42 (17) fb, and 40 (18) fb for the eμ, eτ, and μτ modes, respectively. These results considerably extend constraints from Tevatron experiments.

Item Type: Journal Article
Journal or Publication Title: Physics Letters B
Additional Information: This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 67786
Deposited By: ep_importer_pure
Deposited On: 29 Nov 2013 11:28
Refereed?: Yes
Published?: Published
Last Modified: 20 Feb 2020 01:52
URI: https://eprints.lancs.ac.uk/id/eprint/67786

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