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dc.contributor.authorThe CMS Collaboration
dc.contributor.authorSen,S.
dc.date.accessioned2021-06-03T09:15:05Z
dc.date.available2021-06-03T09:15:05Z
dc.date.issued2019
dc.identifier.issn1434-6044
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-019-6863-8
dc.identifier.urihttp://hdl.handle.net/11655/24465
dc.description.abstractA measurement of the top quark-antiquark pair production cross section sigma(t (t) over bar) in proton-proton collisions at a centre-of-mass energy of 13 TeV is presented. The data correspond to an integrated luminosity of 35.9 fb(-1), recorded by the CMS experiment at the CERN LHC in 2016. Dilepton events (e(+/-) mu(-/+), mu(+) mu(-), e(+) e(-)) are selected and the cross section is measured from a likelihood fit. For a top quark mass parameter in the simulation of m(t)(MC) = 172.5 GeV the fit yields a measured cross section sigma(t (t) over bar) = 803 +/- 2 (stat) +/- 25 (syst) +/- 20 (lumi) pb, in agreement with the expectation from the standard model calculation at next-to-next-to-leading order. A simultaneous fit of the cross section and the top quark mass parameter in the POWHEG simulation is performed. The measured value of m(t)(MC) = 172.33 +/- 0.14 (stat)(-0.72)(+0.66) (syst) GeV is in good agreement with previous measurements. The resulting cross section is used, together with the theoretical prediction, to determine the top quark mass and to extract a value of the strong coupling constant with different sets of parton distribution functions.
dc.language.isoen
dc.relation.isversionof10.1140/epjc/s10052-019-6863-8
dc.rightsAttribution 4.0 United States
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleMeasurement Of The T(T)Over-Bar Production Cross Section, The Top Quark Mass, And The Strong Coupling Constant Using Dilepton Events In Pp Collisions At Root S=13Tev
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.relation.journalEuropean Physical Journal C
dc.contributor.departmentFizik Mühendisliği
dc.identifier.volume79
dc.identifier.issue5
dc.description.indexWoS


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