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dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorDorney, B.
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorKalakhety, H.
dc.contributor.authorYumiceva, Francisco X.
dc.contributor.authorChatrchyan, S. A.
dc.contributor.authorKhachatryan, Vardan
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R.
dc.contributor.authorAdam, Wolfgang
dc.date.accessioned2015-03-18T20:49:30Z
dc.date.available2015-03-18T20:49:30Z
dc.date.issued2014-01-20
dc.identifier.citationChatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., . . . Swanson, J. (2014). Determination of the top-quark pole mass and strong coupling constant from the tt̄ production cross section in pp collisions at √s = 7 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 728(1), 496-517.en_US
dc.identifier.urihttp://hdl.handle.net/11141/497
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, mt pole, or the strong coupling constant, αS. With the parton distribution function set NNPDF2.3, a pole mass of 176. 7+3.8 -3.4GeV is obtained when constraining αSat the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mt poleto the latest average from direct mass measurements, a value of αS(mZ) = 0. 1151+0.0033 -0.0032is extracted. This is the first determination of αSusing events from top-quark production.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is available in accordance with the publisher's policy. It may be subject to U.S. Copyright Law.en_US
dc.rights.urihttp://journals.aps.org/authors/transfer-of-copyright-agreementen_US
dc.titleDetermination of the top-quark pole mass and strong coupling constant from the tt̄ production cross section in pp collisions at √s = 7 TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.physletb.2013.12.009
dc.identifier.doi10.1016/j.physletb.2014.08.040


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