Measurement of normalized differential t t ¯ cross sections in the dilepton channel from pp collisions at √s=13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Measurement of normalized differential t t ¯ cross sections in the dilepton channel from pp collisions at √s=13 TeV. Journal of High Energy Physics, 2018 (4). pp. 1-48. ISSN 1029-8479

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Abstract

Normalized differential cross sections for top quark pair production are measured in the dilepton (e+e −, µ +µ −, and µ ∓e ±) decay channels in proton-proton collisions at a center-of-mass energy of 13 TeV. The measurements are performed with data corresponding to an integrated luminosity of 2.1 fb−1 using the CMS detector at the LHC. The cross sections are measured differentially as a function of the kinematic properties of the leptons, jets from bottom quark hadronization, top quarks, and top quark pairs at the particle and parton levels. The results are compared to several Monte Carlo generators that implement calculations up to next-to-leading order in perturbative quantum chromodynamics interfaced with parton showering, and also to fixed-order theoretical calculations of top quark pair production up to next-to-next-to-leading order.

Item Type:	Article (Journal)
Additional Information:	7861/65569
Uncontrolled Keywords:	Hadron-Hadron scattering (experiments), Top physics, Heavy quark, production, QCD
Subjects:	Q Science > QC Physics
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:	09 Aug 2018 12:01
Last Modified:	24 Jan 2019 14:52
URI:	http://irep.iium.edu.my/id/eprint/65569

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