Recent measurements of top cross sections at CMS

This contribution presents recent cross section measurements for top quark pair production ( {tt̄} t t ‾ ) and single top quark production in association with a W boson (tW) in proton-proton collisions with the CMS experiment at LHC. For {tt̄} t t ‾ production, data from 2017 at a center-of-mass (CM) energy of 5.02 TeV with an integrated luminosity of 302 pb ⁻¹ − 1 were analyzed, with a measured inclusive cross section of 62.3 ± 1.5 (stat) ± 2.4 (syst) ± 1.2 (lumi) 62.3 ± 1.5 ( s t a t ) ± 2.4 ( s y s t ) ± 1.2 ( l u m i ) pb, consistent with Standard Model (SM) predictions. The tW measurement was performed using data from 2022 with an integrated luminosity of 34.7 fb ⁻¹ − 1 at a CM energy of 13.6 TeV, yielding a cross section of 82.3 ± 2.1 (stat) +9.9-9.7 (syst) ± 3.3 (lumi) 82.3 ± 2.1 ( s t a t ) − 9.7 + 9.9 ( s y s t ) ± 3.3 ( l u m i ) pb, in agreement with SM predictions. It includes also differential cross sections which are in good agreement with next-to-leading order in perturbative quantum chromodynamics.