Measurement of the t t ¯ production cross section using events with one lepton and at least one jet in pp collisions at √s=13 TeV

CMS, The CMS Collaboration and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Md. Ali, Mohd. Adli (2017) Measurement of the t t ¯ production cross section using events with one lepton and at least one jet in pp collisions at √s=13 TeV. Journal of High Energy Physics, 2017 (9). pp. 1-39. E-ISSN 1029-8479

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Abstract

A measurement of the t¯t production cross section at √ s = 13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.2 fb−1 , collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be σt¯t = 888 ± 2,(stat)+26 −28 (syst) ± 20 (lumi) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark (mt), the value of mt is found to be 170.6 ± 2.7 GeV

Item Type:	Article (Journal)
Additional Information:	7861/63034
Uncontrolled Keywords:	Hadron-Hadron scattering (experiments), Top physics
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Engku Norulizati Engku Aziz
Date Deposited:	07 May 2018 14:46
Last Modified:	21 Jun 2018 09:59
URI:	http://irep.iium.edu.my/id/eprint/63034

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