Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector

Journal article

A search has been performed for the experimental signature of an isolated photon with high transverse momentum, at least one jet identified as originating from a bottom quark, and high missing transverse momentum. Such a final state may originate from supersymmetric models with gauge-mediated supersymmetry breaking in events in which one of a pair of higgsino-like neutralinos decays into a photon and a gravitino while the other decays into a Higgs boson and a gravitino. The search is performed using the full dataset of 7 TeV proton-proton collisions recorded with the ATLAS detector at the LHC in 2011, corresponding to an integrated luminosity of 4.7 fb-1. A total of 7 candidate events are observed while 7.5±2.2 events are expected from the Standard Model background. The results of the search are interpreted in the context of general gauge mediation to exclude certain regions of a benchmark plane for higgsino-like neutralino production. © 2013 CERN.

Authors: Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Khalek, SA

• Publication status: Published
• Journal: Physics Letters B
• Volume: 719
• Issue: 4-5
• Pages: 261-279
• Publication date: 2013-02-26
• DOI: 10.1016/j.physletb.2013.01.041
• ISSN: 0370-2693
• Keywords: Supersymmetry; Higgs boson; Gauge mediation