• Open Access

Further search for supersymmetry at s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector

G. Aad et al. (ATLAS Collaboration)
Phys. Rev. D 86, 092002 – Published 2 November 2012

Abstract

This work presents a new inclusive search for supersymmetry (SUSY) by the ATLAS experiment at the LHC in proton-proton collisions at a center-of-mass energy s=7TeV in final states with jets, missing transverse momentum and one or more isolated electrons and/or muons. The search is based on data from the full 2011 data-taking period, corresponding to an integrated luminosity of 4.7fb1. Single-lepton and multilepton channels are treated together in one analysis. An increase in sensitivity is obtained by simultaneously fitting the number of events in statistically independent signal regions, and the shapes of distributions within those regions. A dedicated signal region is introduced to be sensitive to decay cascades of SUSY particles with small mass differences (“compressed SUSY”). Background uncertainties are constrained by fitting to the jet-multiplicity distribution in background control regions. Observations are consistent with Standard Model expectations, and limits are set or extended on a number of SUSY models.

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  • Received 23 August 2012

DOI:https://doi.org/10.1103/PhysRevD.86.092002

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2012 CERN, for the ATLAS Collaboration

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Vol. 86, Iss. 9 — 1 November 2012

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