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https://elib.bsu.by/handle/123456789/259029
Полная запись метаданных
Поле DC | Значение | Язык |
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dc.contributor.author | Dvornikov, O. | - |
dc.contributor.author | Makarenko, V. | - |
dc.contributor.author | Mossolov, V. | - |
dc.contributor.author | Gonzalez, Suarez J. | - |
dc.contributor.author | Zykunov, V. | - |
dc.contributor.author | Shumeiko, N. | - |
dc.contributor.author | CMS Collaboration | - |
dc.date.accessioned | 2021-04-23T09:14:20Z | - |
dc.date.available | 2021-04-23T09:14:20Z | - |
dc.date.issued | 2017 | - |
dc.identifier.uri | https://elib.bsu.by/handle/123456789/259029 | - |
dc.description.abstract | Normalized double-differential cross sections for top quark pair (t t ¯) production are measured in pp collisions at a centre-of-mass energy of 8TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 19.7fb-1. The measurement is performed in the dilepton e ±μ∓ final state. The t t ¯ cross section is determined as a function of various pairs of observables characterizing the kinematics of the top quark and t t ¯ system. The data are compared to calculations using perturbative quantum chromodynamics at next-to-leading and approximate next-to-next-to-leading orders. They are also compared to predictions of Monte Carlo event generators that complement fixed-order computations with parton showers, hadronization, and multiple-parton interactions. Overall agreement is observed with the predictions, which is improved when the latest global sets of proton parton distribution functions are used. The inclusion of the measured t t ¯ cross sections in a fit of parametrized parton distribution functions is shown to have significant impact on the gluon distribution. | ru |
dc.description.sponsorship | National Science Foundation (NSF) 1151640,1211067,1506130,1506168,1606321,1607202,1624356; Science and Technology Facilities Council (STFC) PP/E000479/1,ST/H000925/1 | ru |
dc.language.iso | en | ru |
dc.publisher | Springer | ru |
dc.subject | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика | ru |
dc.title | Measurement of double-differential cross sections for top quark pair production in pp collisions at √s=8TeV and impact on parton distribution functions | ru |
dc.type | article | ru |
dc.rights.license | CC BY 4.0 | ru |
dc.identifier.DOI | 10.1140/epjc/s10052-017-4984-5 | - |
dc.identifier.scopus | 85024387884 | - |
Располагается в коллекциях: | Статьи НИУ «Институт ядерных проблем» |
Полный текст документа:
Файл | Описание | Размер | Формат | |
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Sirunyan2017_Article_MeasurementOfDouble-differenti.pdf | 2,05 MB | Adobe PDF | Открыть |
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