Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at √s=13TeV

Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at √s=13TeV

Podrobná bibliografie
Parent link:	Physics Letters B Vol. 800.— 2020.— [135042, 30 p.]
Korporativní autor:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Další autoři:	Sirunyan А. М., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich
Shrnutí:	Title screen Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb−1. Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130±1(stat)±19(syst)pb and 77±1(stat)±12(syst)pb, respectively, and their ratio is 1.68±0.02(stat)±0.05(syst). The results are in agreement with the predictions from the standard model.
Jazyk:	angličtina
Vydáno:	2020
Témata:	электронный ресурс труды учёных ТПУ CMS physics top quark single top cross section
On-line přístup:	https://doi.org/10.1016/j.physletb.2019.135042
Médium:	Elektronický zdroj Kapitola
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666429

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