Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV

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dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-07-08T07:40:21Z
dc.date.available2020-07-08T07:40:21Z
dc.date.issued2018-06-05
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractA search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corresponding to an integrated luminosity of 36 fb(-1). New substructure techniques, including the novel use of energy correlation functions, are utilized to identify the decay products of the top quark. With no significant deviations observed from predictions of the standard model, limits are placed on the production of new heavy bosons coupling to dark matter particles. For a scenario with purely vector-like or purely axial-vector-like flavor changing neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded at 95% confidence level, given a sufficiently small dark matter mass. Scalar resonances decaying into a top quark and a dark matter fermion are excluded for masses below 3.4 TeV, assuming a dark matter mass of 100 GeV.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP06(2018)027
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85048250913en_US
dc.identifier.urihttps://hdl.handle.net/11411/2313
dc.identifier.urihttps://doi.org/10.1007/JHEP06(2018)027
dc.identifier.wosWOS:000434412500007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue6en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors500+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.subjectDark matteren_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectTop physicsen_US
dc.titleSearch for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at root s=13 TeV
dc.typeArticle

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