Search for long-lived particles decaying into muon pairs in proton-proton collisions at ?s = 13 TeV collected with a dedicated high-rate data stream

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dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2022-10-27T10:52:25Z
dc.date.available2022-10-27T10:52:25Z
dc.date.issued2022-04
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractAbstract: A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb?1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95% confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper. [Figure not available: see fulltext.]. © 2022, The Author(s).en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP04(2022)062
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85128344447en_US
dc.identifier.urihttps://hdl.handle.net/11411/4619
dc.identifier.urihttps://doi.org/10.1007/JHEP04(2022)062
dc.identifier.wosWOS:000782767500001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue4en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors100+en_US
dc.publisherSpringer Science and Business Media Deutschland GmbHen_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.subjectBeyond Standard Modelen_US
dc.subjectDark Matteren_US
dc.subjectHadron-Hadron Scatteringen_US
dc.titleSearch for long-lived particles decaying into muon pairs in proton-proton collisions at ?s = 13 TeV collected with a dedicated high-rate data stream
dc.typeArticle
dc.volume2022en_US

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