Adıyaman Üniversitesi Kurumsal Arşivi

Measurement of the charge asymmetry in top-quark pair production in proton-proton collisions at root s=

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dc.contributor.author CMS Collaboration
dc.date.accessioned 2022-06-24T13:13:13Z
dc.date.available 2022-06-24T13:13:13Z
dc.date.issued 2012
dc.identifier.issn 0370-2693
dc.identifier.uri http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/3263
dc.description.abstract The difference in angular distributions between top quarks and antiquarks, commonly referred to as the charge asymmetry, is measured in pp collisions at the LHC with the CMS experiment. The. data sample corresponds to an integrated luminosity of 1.09 fb(-1) at a centre-of-mass energy of 7 TeV. Top-quark pairs are selected in the final state with an electron or muon and four or more jets. At least one jet is identified as originating from b-quark hadronization. The charge asymmetry is measured in two variables, one based on the pseudorapidities (eta) of the top quarks and the other on their rapidities (y). The results A(C)(eta) = -0.017 +/- 0.032 (stat.)(-0.036)(+0.025) (syst.) and A(C)(y) = -0.013 +/- 0.028 (stat.)(-0.031)(+0.029) (syst.) are consistent within uncertainties with the standard-model predictions. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. tr
dc.language.iso en tr
dc.publisher Elsevier tr
dc.subject CMS tr
dc.subject Physics tr
dc.subject Top quark tr
dc.title Measurement of the charge asymmetry in top-quark pair production in proton-proton collisions at root s= tr
dc.type Article tr
dc.identifier.endpage 49 tr
dc.identifier.issue 1-2 tr
dc.identifier.startpage 28 tr
dc.identifier.volume 709 tr
dc.source.title Physics Letters B tr


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