Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √‾s = 8 TeV
Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √‾s = 8 TeV
Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at √‾s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.
1-38
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Tumasyan, A.
6e9fc82d-9104-48e4-8a4d-60f52fdb9ee5
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
March 2018
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Tumasyan, A.
6e9fc82d-9104-48e4-8a4d-60f52fdb9ee5
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Sirunyan, A.M. and Tumasyan, A.
,
The CMS Collaboration
(2018)
Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √‾s = 8 TeV.
Journal of High Energy Physics, 2018 (167), .
(doi:10.1007/JHEP03(2018)167).
Abstract
Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at √‾s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.
Text
Sirunyan2018_Article_SearchForNaturalSupersymmetryI
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Accepted/In Press date: 18 March 2018
e-pub ahead of print date: 27 March 2018
Published date: March 2018
Identifiers
Local EPrints ID: 424657
URI: http://eprints.soton.ac.uk/id/eprint/424657
ISSN: 1029-8479
PURE UUID: 0126399f-4105-4b2e-b0fa-dc17495711ab
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Date deposited: 05 Oct 2018 11:39
Last modified: 05 Oct 2024 01:43
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Author:
A.M. Sirunyan
Author:
A. Tumasyan
Corporate Author: The CMS Collaboration
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