First measurement of the top quark pair production cross section in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV

The CMS collaboration
JHEP 08 (2023) 204, 2023.

Abstract
The first measurement of the top quark pair ($\mathrm{t\bar{t}}$) production cross section in proton-proton collisions at $\sqrt{s}$ = 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 $\mathrm{t\bar{t}}$ production cross section of 881 $\pm$ 23 (stat+syst) $\pm$ 20 (lumi) pb is measured, in agreement with the standard model prediction of 924 $^{+32}_{-40}$ pb.

  • Figure 4 top

    Data from Figure 4 (top), located on page 11.

    10.17182/hepdata.135832.v1/t1

    Comparison of the number of observed (points) and predicted (filled histograms) events in the final analysis binning. The predictions are...

  • Figure 4 bottom

    Data from Figure 4 (bottom), located on page 11.

    10.17182/hepdata.135832.v1/t2

    Comparison of the number of observed (points) and predicted (filled histograms) events in the final analysis binning. The predictions are...

  • Result

    Numbers are given on page 12

    10.17182/hepdata.135832.v1/t3

    Result for the inclusive ttbar production cross section

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