Search for long-lived particles using displaced jets in proton-proton collisions at root s=13 TeV

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dc.authorid0000-0002-2614-5860en_US
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorBergauer, T.
dc.contributor.authorSağır, Sinan
dc.date.accessioned2021-08-27T07:52:38Z
dc.date.available2021-08-27T07:52:38Z
dc.date.issued2021en_US
dc.departmentKMÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.descriptionWOS:000680434500003en_US
dc.description.abstractAn inclusive search is presented for long-lived particles using displaced jets. The search uses a data sample collected with the CMS detector at the CERN LHC in 2017 and 2018, from proton-proton collisions at a center-of-mass energy of 13 TeV. The results of this search are combined with those of a previous search using a data sample collected with the CMS detector in 2016, yielding a total integrated luminosity of 132 fb(-1). The analysis searches for the distinctive topology of displaced tracks and displaced vertices associated with a dijet system. For a simplified model, where pair-produced long-lived neutral particles decay into quark-antiquark pairs, pair production cross sections larger than 0.07 fb are excluded at 95% confidence level (C.L.) for long-lived particle masses larger than 500 GeV and mean proper decay lengths between 2 and 250 mm. For a model where the standard model-like Higgs boson decays to two long-lived scalar particles that each decays to a quark-antiquark pair, branching fractions larger than 1% are excluded at 95% C.L. for mean proper decay lengths between 1 mm and 340 mm. A group of supersymmetric models with pair-produced long-lived gluinos or top squarks decaying into various final-state topologies containing displaced jets is also tested. Gluino masses up to 2500 GeV and top squark masses up to 1600 GeV are excluded at 95% C.L. for mean proper decay lengths between 3 and 300 mm. The highest lower bounds on mass reach 2600 GeV for long-lived gluinos and 1800 GeV for long-lived top squarks. These are the most stringent limits to date on these models.en_US
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W.,Ambrogi, F., Bergauer, T., ...Sağır,S. (2021). Search for long-lived particles using displaced jets in proton-proton collisions at root s=13 TeV. Physical Review D, 104, 1.en_US
dc.identifier.issn2470-0029
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85113198185
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/11492/5213
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.104.012015
dc.identifier.volume104en_US
dc.identifier.wosWOS:000680434500003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorSağır, Sinan
dc.language.isoen
dc.publisherAmer Physical Socen_US
dc.relation.journalPhysical Review Den_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSupersymmetryen_US
dc.subjectSquarken_US
dc.subjectHiggsen_US
dc.titleSearch for long-lived particles using displaced jets in proton-proton collisions at root s=13 TeVen_US
dc.typeArticle

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