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

The CMS collaboration cms-publication-committee-chair@cern.ch

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5 Scopus citations

Abstract

The first measurement of the top quark pair (tt¯) production cross section in proton-proton collisions at s = 13.6 TeV 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 tt¯ 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.

Original languageEnglish
Article number204
JournalJournal of High Energy Physics
Volume2023
Issue number8
DOIs
StatePublished - 1 Sep 2023
Externally publishedYes

Keywords

  • Hadron-Hadron Scattering
  • Top Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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