Study of the underlying event in top quark pair production in pp collisions at 13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Study of the underlying event in top quark pair production in pp collisions at 13 TeV. European Physical Journal C, 79 (2). pp. 1-49. E-ISSN 1434-6044

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Abstract

Measurements of normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. The measurements are performed in proton-proton collisions at a center-of-mass energy of 13 TeV, and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9 fb−1. Events containing one electron, one muon, and two jets from the hadronization and fragmentation of b quarks are used. These measurements characterize, for the first time, properties of the underlying event in top quark pair production and show no deviation from the universality hypothesis at energy scales typically above twice the top quark mass.

Item Type:	Article (Journal)
Additional Information:	7861/71077
Uncontrolled Keywords:	underlying event in top quark pair production, pp collisions at 13 TeV
Subjects:	Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	08 Mar 2019 15:04
Last Modified:	12 Jul 2019 15:51
URI:	http://irep.iium.edu.my/id/eprint/71077

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