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  4. 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 root s=13 TeV
 
research article

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 root s=13 TeV

Tumasyan, A.
•
Adam, W.
•
Andrejkovic, J. W.
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November 1, 2021
Physical Review D

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.

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Type
research article
DOI
10.1103/PhysRevD.104.092013
Web of Science ID

WOS:000726017400004

Author(s)
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Dragicevic, M.
Del Valle, A. Escalante
Fruhwirth, R.
Jeitler, M.
Krammer, N.
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Date Issued

2021-11-01

Publisher

American Physical Society

Published in
Physical Review D
Volume

104

Issue

9

Article Number

092013

Subjects

Astronomy & Astrophysics

•

Physics, Particles & Fields

•

Astronomy & Astrophysics

•

Physics

•

parton distributions

•

top-pair

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
December 18, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/183993
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