Precision measurement of the W boson decay branching fractions in proton-proton collisions at root s=13 TeV

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dc.authorid0000-0002-2614-5860en_US
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorBergauer, T.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorSağır, Sinan
dc.date.accessioned2022-08-02T13:27:41Z
dc.date.available2022-08-02T13:27:41Z
dc.date.issued2022en_US
dc.departmentKMÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.descriptionWOS:000810464600004en_US
dc.description.abstractThe leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at p s = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb???1. Events characterized by the production of one or two W bosons are selected and categorized based on the multiplicity and flavor of reconstructed leptons, the number of jets, and the number of jets identified as originating from the hadronization of b quarks. A binned maximum likelihood estimate of the W boson branching fractions is performed simultaneously in each event category. The measured branching fractions of the W boson decaying into electron, muon, and tau lepton final states are (10.83 ?? 0.10)%, (10.94 ?? 0.08)%, and (10.77 ?? 0.21)%, respectively, consistent with lepton flavor universality for the weak interaction. The average leptonic and inclusive hadronic decay branching fractions are estimated to be (10.89 ?? 0.08)% and (67.32 ?? 0.23)%, respectively. Based on the hadronic branching fraction, three standard model quantities are subsequently derived: the sum of squared elements in the first two rows of the Cabibbo???Kobayashi???Maskawa (CKM) matrix Pij IVijI2 = 1.984 ?? 0.021, the CKM element IVcsI = 0.967 ?? 0.011, and the strong coupling constant at the W boson mass scale, ??S(m2W) = 0.095 ?? 0.033.en_US
dc.identifier.citationTumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Andrejkovic, J. W., Sağır, S. (2022). Precision measurement of the W boson decay branching fractions in proton-proton collisions at root s=13 TeV. Physical Review D, 105, 7.en_US
dc.identifier.doi10.1103/PhysRevD.105.072008
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85130262791
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.105.072008
dc.identifier.urihttps://hdl.handle.net/11492/6476
dc.identifier.volume105en_US
dc.identifier.wosWOS:000810464600004
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.subjectP(P)over-Bar Collisionsen_US
dc.titlePrecision measurement of the W boson decay branching fractions in proton-proton collisions at root s=13 TeVen_US
dc.typeArticle

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