Measurement of differential t(t)over-bar production cross sections in the full kinematic range using lepton plus jets events from proton-proton collisions at √s=13 TeV

(CMS Collaboration) Tumasyan, A.; Adam, W.; ..., ...; Giljanović, Duje; Godinović, Nikola; Lelas, Damir; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Šćulac, Toni; Brigljević, Vuko; Ferenček, Dinko; Majumder, Devdatta; Roguljić, Matej; Starodumov, Andrey; Šuša, Tatjana; ..., ...; Vetens, W. (2021) Measurement of differential t(t)over-bar production cross sections in the full kinematic range using lepton plus jets events from proton-proton collisions at √s=13 TeV. Physical Review D, 104 (9). ISSN 2470-0029

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Abstract

Measurements of differential and double-differential cross sections of top-quark pair (t (t) over bar) production arc 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 arc based on proton-proton collision data at is - = 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 (t) over bar production cross section is measured to be sigma(t (t) over bar) = 791 +/- 25 pb, which constitutes the most precise measurement in the lepton + jets channel to date.

Item Type:	Article
Uncontrolled Keywords:	High energy physics; Experimental particle physics; LHC; CMS; Radiation-hard detectors; Si microstrip and pad detectors; Radiation damage to detector materials (solid state); Particle tracking detectors (Solid-state detectors); radiation: damage; CMS: upgrade; tracking detector; semiconductor detector: design; semiconductor detector: microstrip; performance; Hadron-Hadron scattering (experiments); Top physics; p p: scattering; p p: colliding beams; top: single production
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Division of Experimental Physics
Depositing User:	Virna Brumnić
Date Deposited:	26 Mar 2026 12:28
URI:	http://fulir.irb.hr/id/eprint/11494
DOI:	10.1103/PhysRevD.104.092013

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