Determination of the top-quark pole mass and strong coupling constant from the tt production cross section in pp collisions at √s = 7 TeV

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dc.citation.firstpage496en_US
dc.citation.journalTitlePhysics Letters Ben_US
dc.citation.lastpage517en_US
dc.citation.volumeNumber728en_US
dc.contributor.authorAdair, A.en_US
dc.contributor.authorAkgun, B.en_US
dc.contributor.authorEcklund, K.M.en_US
dc.contributor.authorGeurts, F.J.M.en_US
dc.contributor.authorLi, W.en_US
dc.contributor.authorMichlin, B.en_US
dc.contributor.authorPadley, B.P.en_US
dc.contributor.authorRedjimi, R.en_US
dc.contributor.authorRoberts, J.en_US
dc.contributor.authorZabel, J.en_US
dc.date.accessioned2015-04-20T19:52:03Zen_US
dc.date.available2015-04-20T19:52:03Zen_US
dc.date.issued2014en_US
dc.description.abstractThe inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, View the MathML sourcemtpole, or the strong coupling constant, αSαS. With the parton distribution function set NNPDF2.3, a pole mass of 176.7 +3.8 −3.4 GeV is obtained when constraining αS at the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mtpole to the latest average from direct mass measurements, a value of αS(mZ)=0.1151−0.0032+0.0033 is extracted. This is the first determination of αS using events from top-quark production.en_US
dc.identifier.citationAdair, A., Akgun, B., Ecklund, K.M., et al.. "Determination of the top-quark pole mass and strong coupling constant from the tt production cross section in pp collisions at √s = 7 TeV." <i>Physics Letters B,</i> 728, (2014) Elsevier: 496-517. http://dx.doi.org/10.1016/j.physletb.2013.12.009.en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.physletb.2013.12.009en_US
dc.identifier.urihttps://hdl.handle.net/1911/79605en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.subject.keywordCMSen_US
dc.subject.keywordPhysicsen_US
dc.subject.keywordTopen_US
dc.subject.keywordQuarken_US
dc.subject.keywordPairen_US
dc.subject.keywordCross sectionen_US
dc.subject.keywordMassen_US
dc.subject.keywordQCDen_US
dc.subject.keywordStrongen_US
dc.subject.keywordCouplingen_US
dc.subject.keywordConstanten_US
dc.titleDetermination of the top-quark pole mass and strong coupling constant from the tt production cross section in pp collisions at √s = 7 TeVen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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