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001-es BibID:	BIBFORM120524
035-os BibID:	(Scopus)85121314677 (WoS)000726017400004
Első szerző:	Tumasyan, Armen
Cím:	Measurement of differential t[overline]t production cross sections in the full kinematic range using lepton+jets events from proton-proton collisions at root{s} =13 TeV / A. Tumasyan, CMS Collaboration
Dátum:	2021
ISSN:	2470-0010 2470-0029
Megjegyzések:	Measurements of differential and double-differential cross sections of top-quark pair (t[overline]t) production are presented in the lepton+jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum p_T, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high p_T, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at root{s}=13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb^-1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double-differential distributions. The inclusive t[overline]t production cross section is measured to be [sigma]_t[overline]t=791 +/- 25 pb, which constitutes the most precise measurement in the lepton+jets channel to date.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Physical Review D. - 104 : 9 (2021), p. 1-93. -
További szerzők:	Bartók Márton (fizikus) Karancsi János (1987-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus) CMS Collaboration
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