Search for Supersymmetry with a Compressed Mass Spectrum in Events with a Soft tau Lepton, a Highly Energetic Jet, and Large Missing Transverse Momentum in Proton-Proton Collisions at root s=13 TeV

dc.WoS.categoriesPhysics, Multidisciplinaryen_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-06-03T12:19:15Z
dc.date.available2020-06-03T12:19:15Z
dc.date.issued2020-01-29
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractThe first search for supersymmetry in events with an experimental signature of one soft, hadronically decaying tau lepton, one energetic jet from initial-state radiation, and large transverse momentum imbalance is presented. These event signatures are consistent with direct or indirect production of scalar tau leptons ((tau) over tilde) in supersymmetric models that exhibit coannihilation between the (tau) over tilde and the lightest neutralino ((chi) over tilde (0)(1)), and that could generate the observed relic density of dark matter. The data correspond to an integrated luminosity of 77.2 fb(-1) of proton-proton collisions at root s = 13 TeV collected with the CMS detector at the LHC in 2016 and 2017. The results are interpreted in a supersymmetric scenario with a small mass difference (Delta m) between the chargino ((chi) over tilde (+/-)(1)) or next-to-lightest neutralino ((chi) over tilde (0)(2)), and the (chi) over tilde (0)(1). The mass of the (tau) over tilde is assumed to be the average of the (chi) over tilde (1)(+/-) and (chi) over tilde (0)(1) masses. The data are consistent with standard model background predictions. Upper limits at 95% confidence level are set on the sum of the (chi) over tilde (+/-)(1). (chi) over tilde (0)(2), and (tau) over tilde production cross sections for Delta m ((chi) over tilde (+/-)(1),(chi) over tilde (0)(1)) = 50 GeV, resulting in a lower limit of 290 GeVon the mass of the (chi) over tilde (+/-)(1), which is the most stringent to date and surpasses the bounds from the LEP experiments.en_US
dc.description.sponsorshipAustrian Science Fund (FWF) Fonds de la Recherche Scientifique - FNRS FWO National Council for Scientific and Technological Development (CNPq)en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1103/PhysRevLett.124.041803
dc.identifier.issn1079-7114
dc.identifier.issn0031-9007
dc.identifier.pmid32058742en_US
dc.identifier.scopus2-s2.0-85079553149en_US
dc.identifier.urihttps://hdl.handle.net/11411/2146
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.124.041803
dc.identifier.wosWOS:000510176700004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.issue4en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherAmer Physical Soc.en_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.scopus.SNIP2.532en_US
dc.subjectCo-Annihilation Regionen_US
dc.subjectE(+)E(-) Collisionsen_US
dc.subjectScalar Leptonsen_US
dc.titleSearch for Supersymmetry with a Compressed Mass Spectrum in Events with a Soft tau Lepton, a Highly Energetic Jet, and Large Missing Transverse Momentum in Proton-Proton Collisions at root s=13 TeV
dc.typeArticle
dc.volume124en_US

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