Measurement of lepton differential distributions and the top quark mass in tt¯ production in pp collisions at √s=8 TeV with the ATLAS detector

doi:10.1140/epjc/s10052-017-5349-9

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Measurement of lepton differential distributions and the top quark mass in tt¯ production in pp collisions at √s=8 TeV with the ATLAS detector	3 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1140/epjc/s10052-017-5349-9

#ATLAS, детектор

#Большой адронный коллайдер

#протон-протонные столкновения

#лептоны

Title: Measurement of lepton differential distributions and the top quark mass in tt¯ production in pp collisions at √s=8 TeV with the ATLAS detector
Creator: Aad, G.
|
Abbott, B.
|
Chelkov, G. A.
|
Khodinov, A.
|
Vaniachine, A.
|
Aaboud, M.
Date: 2017
DOI: 10.1140/epjc/s10052-017-5349-9
Description: This paper presents single lepton and dilepton kinematic distributions measured in dileptonic tar{t} events produced in 20.2 hbox {fb}^{-1} of sqrt{s}=8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge emu pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for leptons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of {m_t^{mathrm {pole}}}=173.2pm 0.9pm 0.8pm 1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources.

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collection(s): Физический факультет | Радиофизический факультет | Научное управление
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: The European physical journal C. 2017. Vol. 77, № 11. P. 804 (1-66)
Language: eng

Created: 01-11-2018

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Научное управление Measurement of lepton differential distributions and the top quark mass in tt¯ production in pp collisions at √s=8 TeV with the ATLAS detector