Journal article
Search for supersymmetry in a final state containing two photons and missing transverse momentum in √ s =13TeV pp collisions at the LHC using the ATLAS detector
The European Physical Journal C, Vol.76(9), 517
09/01/2016
DOI: 10.1140/epjc/s10052-016-4344-x
Appears in Diamond Open Access
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.
Details
- Title: Subtitle
- Search for supersymmetry in a final state containing two photons and missing transverse momentum in √ s =13TeV pp collisions at the LHC using the ATLAS detector
- Creators
- K HaraS. H Kim - University of Iowa, IIHR--Hydroscience and EngineeringH OkawaK SatoF UkegawaATLAS Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The European Physical Journal C, Vol.76(9), 517
- DOI
- 10.1140/epjc/s10052-016-4344-x
- ISSN
- 1434-6044
- Publisher
- Springer
- Language
- English
- Date published
- 09/01/2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199722502771
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