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dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorÖzdemir, Kadri
dc.contributor.authorCMS Collaboration
dc.date.accessioned2021-06-05T19:57:43Z
dc.date.available2021-06-05T19:57:43Z
dc.date.issued2016
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2016.05.033
dc.identifier.urihttps://hdl.handle.net/20.500.12960/544
dc.descriptionWOS:000380409200002en_US
dc.description.abstractResults are presented from a search for super symmetric particles in scenarios with small mass splittings. The data sample corresponds to 19.7 fb(-1) of proton-proton collisions recorded by the CMS experiment at root s = 8 TeV. The search targets top squark ((t) over tilde) pair production in scenarios with mass differences Delta m = m((t) over tilde) - m((chi) over tilde (0)(1)) below the W-boson mass and with top-squark decays in the four-body mode ((t) over tilde -> bl nu(chi) over tilde (0)(1)), where the neutralino ((chi) over tilde (0)(1)) is assumed to be the lightest supersymmetric particle (LSP). The signature includes a high transverse momentum (p(T)) jet associated with initial-state radiation, one or two low-p(T) leptons, and significant missing transverse energy. The event yields observed in data are consistent with the expected background contributions from standard model processes. Limits are set on the cross section for top squark pair production as a function of the (t) over tilde t and LSP masses. Assuming a 100% branching fraction for the four-body decay mode, top-squark masses below 316 GeV are excluded for Delta m = 25 GeV at 95% CL. The dilepton data are also interpreted under the assumption of chargino-neutralino production, with subsequent decays to sleptons or sneutrinos. Assuming a difference between the common ($) over tilde (+)(1)/(chi) over tilde (0)(2) mass and the LSP mass of 20 GeV and a tau-enriched decay scenario, masses in the range m((chi) over tilde (+)(1)) < 307 GeV are excluded at 95% CL. (C) 2016 The Author. Published by Elsevier B.V.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters Ben_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCMSen_US
dc.subjectPhysicsen_US
dc.subjectSupersymmetryen_US
dc.titleSearch for supersymmetry in events with soft leptons, low jet multiplicity, and missing transverse energy in proton-proton collisions at root s=8 TeVen_US
dc.typearticleen_US
dc.authorid0000-0002-0103-1488
dc.departmentMühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.contributor.institutionauthorÖzdemir, Kadri
dc.identifier.doi10.1016/j.physletb.2016.05.033
dc.identifier.volume759en_US
dc.identifier.startpage9en_US
dc.identifier.endpage35en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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