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.

Tumasyan, A., Adam, W., Andrejkovic, J., 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

Monti, F.;Xiao, J.;Benaglia, A.;Boldrini, G.;Brivio, F.;Cetorelli, F.;De Guio, F.;Dinardo, M. E.;Ghezzi, A.;Govoni, P.;Guzzi, L.;Lucchini, M. T.;Malberti, M.;Massironi, A.;Moroni, L.;Paganoni, M.;Pinolini, B. S.;Ragazzi, S.;Tabarelli de Fatis, T.;Zuolo, D.;Ortona, G.;Pigazzini, S.;Valsecchi, D.;Gerosa, R.;
2023

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.
Articolo in rivista - Articolo scientifico
Hadron-Hadron Scattering; Top Physics;
English
30-ago-2023
2023
2023
8
204
open
Tumasyan, A., Adam, W., Andrejkovic, J., 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/10281/474559
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