First measurement of the top quark pair production cross section in proton-proton collisions at √s=13.6 TeV

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Title:	First measurement of the top quark pair production cross section in proton-proton collisions at √s=13.6 TeV
Authors:	CMS Collaboration Tumasyan, A. ALPANA, A. DUBE, SOURABH KANSAL, B. LAHA, A. PANDEY, S. RASTOGI, A. SHARMA, SEEMA et al. Dept. of Physics
Keywords:	Hadron-Hadron Scattering Top Physics 2023
Issue Date:	Aug-2023
Publisher:	Springer Nature
Citation:	Journal of High Energy Physics, 2023(08), 204.
Abstract:	The first measurement of the top quark pair (t (t) over bar) production cross section in proton-proton collisions at root s = 13.6TeV is presented. Data recorded with the CMS detector at the CERN LHC in Summer 2022, corresponding to an integrated luminosity of 1.21 fb(-1), are analyzed. Events are selected with one or two charged leptons (electrons or muons) and additional jets. A maximum likelihood fit is performed in event categories defined by the number and flavors of the leptons, the number of jets, and the number of jets identified as originating from b quarks. An inclusive t (t) over bar production cross section of 881 +/- 23 (stat + syst) +/- 20 (lumi) pb is measured, in agreement with the standard model prediction of 924(-40)(+32) pb.
URI:	https://doi.org/10.1007/JHEP08(2023)204 http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/8519
ISSN:	1029-8479
Appears in Collections:	JOURNAL ARTICLES

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