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Search for anomalous production of prompt like-sign lepton pairs at $ sqrt{s}=7;mathrm{TeV} $ with the ATLAS detector
Aad G.
•
Abajyan T.
•
Abbott B.
altro
Zwalinski L.
2012
journal article
Periodico
JOURNAL OF HIGH ENERGY PHYSICS
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 =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. © 2012 Cern for the benefit of the ATLAS collaboration
DOI
10.1007/JHEP12(2012)007
WOS
WOS:000313123800007
Archivio
http://hdl.handle.net/11390/948201
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84878590017
Diritti
metadata only access
Web of Science© citazioni
48
Data di acquisizione
Mar 26, 2024
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