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

, The ATLAS collaboration (2016) 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. European Physical Journal C: Particles and Fields, 76 (9). ISSN 1434-6044

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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 3.2 fb−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+0.22−0.10 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:
Journal Article
Journal or Publication Title:
European Physical Journal C: Particles and Fields
Additional Information:
© CERN for the benefit of the ATLAS collaboration 2016. This article is published with open access at Springerlink.com EPJC is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
ID Code:
82053
Deposited By:
Deposited On:
07 Oct 2016 11:26
Refereed?:
Yes
Published?:
Published
Last Modified:
02 Feb 2021 07:36