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タイトル
和文:Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at s=13 TeV using the ATLAS detector 
英文:Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at s=13 TeV using the ATLAS detector 
著者
和文: M. Aaboud, 陣内 修, 久世 正弘, 山口 洋平, et al..  
英文: M. Aaboud, Osamu Jinnouchi, Masahiro.Kuze, Youhei Yamaguchi, et al..  
言語 English 
掲載誌/書名
和文:European Physical Journal C 
英文:European Physical Journal C 
巻, 号, ページ Vol. 77    No. 5    pp. "292"
出版年月 2017年5月 
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英文: 
会議名称
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開催地
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公式リンク https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019130124&doi=10.1140%2fepjc%2fs10052-017-4821-x&partnerID=40&md5=0b614e43a2819e202800d520a3ce5c1e
 
DOI https://doi.org/10.1140/epjc/s10052-017-4821-x
アブストラクト This article presents measurements of $t\bar{t}$ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb$^{-1}$ of proton?proton data at a centre-of-mass energy of $\sqrt{s} = 13$ ?TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the $t\bar{t}$ system. The $t\bar{t}$ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the Powheg-Box $+$ Herwig++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the $t\bar{t}$

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