Search for anomalous production of prompt like-sign lepton pairs at s√=7TeV with the ATLAS detector

Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Davidson, Ruth and de Mora, Lee and Dearnaley, William and Fox, Harald 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 (2012) Search for anomalous production of prompt like-sign lepton pairs at s√=7TeV with the ATLAS detector. Journal of High Energy Physics, 2012 (12). ISSN 1029-8479

[img]
Preview
PDF (art%3A10.1007%2FJHEP12%282012%29007)
art_3A10.1007_2FJHEP12_282012_29007.pdf - Published Version
Available under License Creative Commons Attribution.

Download (759kB)

Abstract

An inclusive search for anomalous production of two prompt, isolated leptons with the same electric charge is presented. The search is performed in a data sample corresponding to 4.7 fb−1 of integrated luminosity collected in 2011 at s√=7TeV with the ATLAS detector at the LHC. Pairs of leptons (e ± e ±, e ± μ ±, and μ ± μ ±) with large transverse momentum are selected, and the dilepton invariant mass distribution is examined for any deviation from the Standard Model expectation. No excess is found, and upper limits on the production cross section of like-sign lepton pairs from physics processes beyond the Standard Model are placed as a function of the dilepton invariant mass within a fiducial region close to the experimental selection criteria. The 95% confidence level upper limits on the cross section of anomalous e ± e ±, e ± μ ±, or μ ± μ ± production range between 1.7 fb and 64 fb depending on the dilepton mass and flavour combination.

Item Type: Journal Article
Journal or Publication Title: Journal of High Energy Physics
Additional Information: This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 68013
Deposited By: ep_importer_pure
Deposited On: 13 Dec 2013 00:03
Refereed?: Yes
Published?: Published
Last Modified: 24 Feb 2020 01:48
URI: https://eprints.lancs.ac.uk/id/eprint/68013

Actions (login required)

View Item View Item