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



Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2853 more authors) (2016) Search for supersymmetry in a final state containing two photons and missing transverse momentum in √<i>s</i>=13 TeV <i>pp</i> collisions at the LHC using the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 76 (9). 517-.

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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 [Formula: see text] 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 [Formula: see text] 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.

Item Type: Article
Additional Information: 16 pages plus author list + cover pages (33 pages total), 3 figures, 4 tables, submitted to European Physical Journal C, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2016-04/
Uncontrolled Keywords: ATLAS Collaboration, ATLAS Collaboration, ATLAS Collaboration
Depositing User: Symplectic Admin
Date Deposited: 14 Mar 2017 14:41
Last Modified: 05 Oct 2023 14:52
DOI: 10.1140/epjc/s10052-016-4344-x
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3006390