Measurement of CKM matrix elements in single top quark t-channel production 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.accessioned2020-10-12T14:35:01Z
dc.date.available2020-10-12T14:35:01Z
dc.date.issued2020en_US
dc.departmentKMÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.descriptionWOS:000571769700003 ISSN: 0370-2693en_US
dc.description.abstractThe first direct, model-independent measurement is presented of the modulus of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements vertical bar V-tb vertical bar, vertical bar V-td vertical bar, and vertical bar V-ts vertical bar, in final states enriched in single top quark t-channel events. The analysis uses proton-proton collision data from the LHC, collected during 2016 by the CMS experiment, at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1). Processes directly sensitive to these matrix elements are considered at both the production and decay vertices of the top quark. In the standard model hypothesis of CKM unitarity, a lower limit of vertical bar V-tb vertical bar > 0.970 is measured at the 95% confidence level. Several theories beyond the standard model are considered, and by releasing all constraints among the involved parameters, the values vertical bar V-tb vertical bar = 0.988 +/- 0.024, and vertical bar V-td vertical bar(2) + vertical bar V-ts vertical bar(2) = 0.06 +/- 0.06, where the uncertainties include both statistical and systematic components, are measured.en_US
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T. Sağır,S.(2020). Measurement of CKM matrix elements in single top quark t-channel production in proton-proton collisions at root s=13 TeV. Physics Letters B. 808en_US
dc.identifier.doi10.1016/j.physletb.2020.135609
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopusscopusidyok
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2020.135609
dc.identifier.urihttps://hdl.handle.net/11492/3692
dc.identifier.volume808en_US
dc.identifier.wosWOS:000571769700003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorSağır, Sinan
dc.language.isoen
dc.publisherElsevieren_US
dc.relation.journalPhysics Letters Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCMSen_US
dc.subjectPhysicsen_US
dc.subjectCKM Matrixen_US
dc.subjectTop Quarken_US
dc.titleMeasurement of CKM matrix elements in single top quark t-channel production in proton-proton collisions at root s=13 TeVen_US
dc.typeArticle

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