Search for Gluinos in Events with Two Same-Sign Leptons, Jets, and Missing Transverse Momentum with the ATLAS Detector in pp Collisions at √s̅=7 TeV

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Search for Gluinos in Events with Two Same-Sign Leptons, Jets, and Missing Transverse Momentum with the ATLAS Detector in pp Collisions at √s̅=7 TeV

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Title: Search for Gluinos in Events with Two Same-Sign Leptons, Jets, and Missing Transverse Momentum with the ATLAS Detector in pp Collisions at √s̅=7 TeV
Author(s):
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdel Khalek, S.;
Abdelalim, A. A.;
Abdesselam, A.;
Abdinov, O.;
Abi, B.;
Ahsan, Mahsana;
Izen, Joseph M.;
Lou, Xinchou;
Reeves, Kendall;
Wong, Wei-Cheng;
ATLAS Collaboration
Date Created: 2012-06-15
Format: Text
Item Type: Article
Keywords: Leptons (Nuclear physics)
Jets (Nuclear physics)
Gluinos
Abstract: A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05 fb⁻¹ of integrated luminosity from pp collisions at √s̅=7 TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L.
Publisher: American Physical Society
ISSN: 0031-9007
Source: Physical Review Letters
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevLett.108.241802
Persistent Link: http://hdl.handle.net/10735.1/3091
Bibliographic Citation: Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, et al. 2012. "Search for gluinos in events with two same-sign leptons, jets, and missing transverse momentum with the ATLAS detector in pp collisions at √s̅=7 TeV." Physical Review Letters 108(24), doi:10.1103/PhysRevLett.108.241802
Terms of Use: CC BY 3.0 (Attribution)
© 2012 CERN, for the ATLAS Collaboration

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CC BY 3.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 3.0 (Attribution)