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Scientific article
Open access
English

Search for supersymmetry in a final state containing two photons and missing transverse momentum in √s = 13 TeV pp collisions at the LHC using the ATLAS detector

ContributorsATLAS Collaboration
Published inEuropean physical journal. C, Particles and fields, vol. 76, no. 9, 517
Collection
  • Open Access - SCOAP3
Publication date2016
Abstract

A search has been made for supersymmetry in a final state containing two photons and missing transverse momentum using the ATLAS detector at the Large Hadron Collider. The search makes use of 3.2fb-1 of proton-proton collision data collected at a centre-of-mass energy of 13 TeV in 2015. Using a combination of data-driven and Monte-Carlo-based approaches, the Standard Model background is estimated to be 0.27-0.10+0.22 events. No events are observed in the signal region; considering the expected background and its uncertainty, this observation implies a model-independent 95 % CL upper limit of 0.93 fb (3.0 events) on the visible cross section due to physics beyond the Standard Model. In the context of a generalized model of gauge-mediated supersymmetry breaking with a bino-like next-to-lightest supersymmetric particle, this leads to a lower limit of 1650 GeV on the mass of a degenerate octet of gluino states, independent of the mass of the lighter bino-like neutralino.

Citation (ISO format)
ATLAS Collaboration. Search for supersymmetry in a final state containing two photons and missing transverse momentum in √s = 13 TeV pp collisions at the LHC using the ATLAS detector. In: European physical journal. C, Particles and fields, 2016, vol. 76, n° 9, p. 517. doi: 10.1140/epjc/s10052-016-4344-x
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Article (Published version)
Identifiers
ISSN of the journal1434-6044
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