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Measurement of the inclusive $t\overline t$ cross section in pp collisions at $\sqrt s$ = 5.02 TeV using final states with at least one charged lepton


Abstract

The top quark pair production cross section $\left({\sigma}_{\mathrm{t}\overline{\mathrm{t}}}\right)$ is measured for the first time in pp collisions at a center-of-mass energy of 5.02 TeV. The data were collected by the CMS experiment at the LHC and correspond to an integrated luminosity of $27.4 pb^ {−1}$. The measurement is performed by analyzing events with at least one charged lepton. The measured cross section is ${\sigma}_{\mathrm{t}\overline{\mathrm{t}}}$, with a total relative uncertainty of 12%. The result is in agreement with the expectation from the standard model. The impact of the presented measurement on the determination of the gluon distribution function is investigated.

Abstract

The top quark pair production cross section $\left({\sigma}_{\mathrm{t}\overline{\mathrm{t}}}\right)$ is measured for the first time in pp collisions at a center-of-mass energy of 5.02 TeV. The data were collected by the CMS experiment at the LHC and correspond to an integrated luminosity of $27.4 pb^ {−1}$. The measurement is performed by analyzing events with at least one charged lepton. The measured cross section is ${\sigma}_{\mathrm{t}\overline{\mathrm{t}}}$, with a total relative uncertainty of 12%. The result is in agreement with the expectation from the standard model. The impact of the presented measurement on the determination of the gluon distribution function is investigated.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:2018
Deposited On:01 Mar 2019 14:32
Last Modified:14 Jul 2020 15:43
Publisher:Springer
ISSN:1029-8479
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP03(2018)115

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