Logo BSU

Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот документ: https://elib.bsu.by/handle/123456789/288070
Полная запись метаданных
Поле DCЗначениеЯзык
dc.contributor.authorDrugakov, V.-
dc.contributor.authorMossolov, V.-
dc.contributor.authorSuarez Gonzalez, J.-
dc.contributor.authorCMS collaboration-
dc.date.accessioned2022-10-27T13:28:46Z-
dc.date.available2022-10-27T13:28:46Z-
dc.date.issued2020-
dc.identifier.citationJ High Energy Phys 2020;2020(7)ru
dc.identifier.urihttps://elib.bsu.by/handle/123456789/288070-
dc.description.abstractMeasurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt ¯bb ¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt ¯jj) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are σtt ¯jj = 2.36±0.02 (stat)±0.20 (syst) pb and 31.0±0.2 (stat)±2.9 (syst) pb, and for the cross section ratio 0.017 ± 0.001 (stat) ± 0.001 (syst) and 0.020 ± 0.001 (stat) ± 0.001 (syst). The values of σtt ¯bb ¯ are determined from the product of the σtt ¯jj and the cross section ratio, obtaining, respectively, 0.040±0.002 (stat)±0.005 (syst) pb and 0.62±0.03 (stat)±0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. [Figure not available: see fulltext.]ru
dc.description.sponsorshipHorizon 2020 Framework Programme (H2020).675440, 752730, 765710ru
dc.language.isoenru
dc.publisherSpringeru
dc.rightsinfo:eu-repo/semantics/openAccessru
dc.subjectЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физикаru
dc.subjectЭБ БГУ::ТЕХНИЧЕСКИЕ И ПРИКЛАДНЫЕ НАУКИ. ОТРАСЛИ ЭКОНОМИКИ::Ядерная техникаru
dc.titleMeasurement of the cross section for t t ¯ production with additional jets and b jets in pp collisions at √s = 13 TeVru
dc.typearticleru
dc.rights.licenseCC BY 4.0ru
dc.identifier.DOI10.1007/JHEP07(2020)125-
dc.identifier.scopus85088526760-
Располагается в коллекциях:Статьи НИУ «Институт ядерных проблем»

Полный текст документа:
Файл Описание РазмерФормат 
JHEP07(2020)125.pdf647,73 kBAdobe PDFОткрыть
Показать базовое описание документа Статистика Google Scholar



Все документы в Электронной библиотеке защищены авторским правом, все права сохранены.