Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/102543
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Type: | Journal article |
Title: | Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in √s=7 TeV proton–proton collisions |
Other Titles: | Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s = 7 TeV proton-proton collisions |
Author: | Aad, G. ATLAS Collaboration, |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2012; 709(3):137-157 |
Publisher: | Elsevier |
Issue Date: | 2012 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | G. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (The ATLAS Collaboration) |
Abstract: | Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or μ. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of of proton–proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite-sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL. For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effective production cross sections in excess of 14.8 fb are excluded at 95% CL. The latter limit is interpreted in a simplified electroweak gaugino production model excluding chargino masses up to 200 GeV, under the assumption that slepton decay is dominant. |
Rights: | © 2012 CERN. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
DOI: | 10.1016/j.physletb.2012.01.076 |
Published version: | http://dx.doi.org/10.1016/j.physletb.2012.01.076 |
Appears in Collections: | Aurora harvest 3 Physics publications |
Files in This Item:
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hdl_102543.pdf | Published version | 1.9 MB | Adobe PDF | View/Open |
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