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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
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ATLAS Collaboration (Including: Farrington, Sinead and Jones, G. (Graham)). (2013) 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. Physics Letters B, Volume 719 (Number 4-5). pp. 261-279. doi:10.1016/j.physletb.2013.01.041 ISSN 0370-2693.
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WRAP_Atlas_1-s2.0-S0370269313000828-main.pdf - Published Version Available under License Creative Commons Attribution. Download (1411Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.physletb.2013.01.041
Abstract
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.
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