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.

Tumasyan, A., Adam, W., Andrejkovic, J.W., Bergauer, T., Chatterjee, S., Damanakis, K., et al. (2023). First measurement of the top quark pair production cross section in proton-proton collisions at √s=13.6 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(8) [10.1007/JHEP08(2023)204].

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

Ciocci, M. A.;Messineo, A.;
2023-01-01

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.
2023
Tumasyan, A., Adam, W., Andrejkovic, J.W., Bergauer, T., Chatterjee, S., Damanakis, K., et al. (2023). First measurement of the top quark pair production cross section in proton-proton collisions at √s=13.6 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(8) [10.1007/JHEP08(2023)204].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1327073