Search for anomalous production of prompt like-sign lepton pairs at √s = 7 TeV with the ATLAS detector
EntityUAM. Departamento de Física Teórica
PublisherSISSA 2012; Springer Verlag
10.1007/JHEP12(2012)007Journal of High Energy Physics 2012.12 (2012): 007
ISSN1126-6708 (print); 1029-8479 (online)
Funded byWe thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently
SubjectsHadron-hadron scattering; Física
NoteJournal of High Energy Physics 2012.12 (2012): 007 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Rights© SISSA 2012; © 2012 Cern for the benefit of the ATLAS collaboration
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 =7 TeV 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
Google Scholar:Aad, G. - The ATLAS collaboration - Arnal, V. - Barreiro Alonso, Fernando - Cantero, J. - de la Torre, H. - del Peso, J. - Glasman Kuguel, Claudia Beatriz - Labarga Echeverría, Luis Alfonso - Llorente Merino, J. - March, Luis - Terron, J.
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