Adıyaman Üniversitesi Kurumsal Arşivi

Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC

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dc.contributor.author CMS Collaboration
dc.date.accessioned 2022-06-14T10:14:52Z
dc.date.available 2022-06-14T10:14:52Z
dc.date.issued 2011
dc.identifier.issn 1550-7998
dc.identifier.uri http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/3171
dc.description.abstract A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle ambiguity due to the unknown assignment of the scattered constituent quark and antiquark to the two protons in a collision is resolved statistically using correlations between the observables. The method is applied to a sample of dimuon events from proton-proton collisions at root s = 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 1.1 fb(-1). From the dominant u (u) over bar, d (d) over bar -> gamma*/Z -> mu(-)mu(+) process, the effective weak mixing angle parameter is measured to be sin(2)theta(eff) = 0.2287 +/- 0.0020 (stat.) +/- 0.0025 (syst.) This result is consistent with measurements from other processes, as expected within the standard model. tr
dc.language.iso en tr
dc.publisher Amer Physical Soc tr
dc.title Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC tr
dc.type Article tr
dc.identifier.issue 11 tr
dc.identifier.volume 84 tr
dc.source.title Physical Review D tr


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