Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 TeV

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dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-11-10T09:05:35Z
dc.date.available2020-11-10T09:05:35Z
dc.date.issued2018-03-27
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractResults 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 root 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.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP03(2018)167en_US
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85049801810en_US
dc.identifier.urihttps://hdl.handle.net/11411/2556
dc.identifier.urihttps://doi.org/10.1007/JHEP03(2018)167
dc.identifier.wosWOS:000430566400002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.issue3en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors200+en_US
dc.publisherSPRINGERen_US
dc.relation.ispartofJOURNAL OF HIGH ENERGY PHYSICSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectSupersymmetryen_US
dc.titleSearch for natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 TeVen_US
dc.typeArticleen_US

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