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

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Author
Tumasyan, A.
Adam, W.
Andrejkovic, J.W.
Bergauer, T.
Finger, MiroslavORCiD Profile - 0000-0002-7828-9970WoS Profile - P-7005-2017Scopus Profile - 55708019600
Finger, MichaelORCiD Profile - 0000-0003-3155-2484WoS Profile - P-9117-2017Scopus Profile - 8435121500
Květoň, AntonínORCiD Profile - 0000-0001-8197-1914WoS Profile - AAA-9178-2020Scopus Profile - 57188628481

Publication date
2023
Published in
Journal of High Energy Physics
Volume / Issue
neuveden (08)
ISBN / ISSN
ISSN: 1029-8479
ISBN / ISSN
eISSN: 1029-8479
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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.
Keywords
top quark pair production, proton-proton collisions, CMS,
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https://hdl.handle.net/20.500.14178/2975
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WOS:001071175400001
SCOPUS:2-s2.0-85189245802
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