Measurement of t(t)over-bar production in association with additional b-jets in the eμ final state in proton-proton collisions at √s=13 TeV with the ATLAS detector

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73633308" target="_blank" >RIV/61989592:15310/25:73633308 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/JHEP01(2025)068" target="_blank" >https://link.springer.com/article/10.1007/JHEP01(2025)068</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP01(2025)068" target="_blank" >10.1007/JHEP01(2025)068</a>

Result language

angličtina

Original language name

Measurement of t(t)over-bar production in association with additional b-jets in the eμ final state in proton-proton collisions at √s=13 TeV with the ATLAS detector

Original language description

This paper presents measurements of top-antitop quark pair (t (t) over bar) production in association with additional b-jets. The analysis utilises 140 fb(-1) of proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13TeV. Fiducial cross-sections are extracted in a final state featuring one electron and one muon, with at least three or four b-jets. Results are presented at the particle level for both integrated cross-sections and normalised differential cross-sections, as functions of global event properties, jet kinematics, and b-jet pair properties. Observable quantities characterising b-jets originating from the top quark decay and additional b-jets are also measured at the particle level, after correcting for detector effects. The measured integrated fiducial cross-sections are consistent with t (t) over barb (b) over bar predictions from various next-to-leading-order matrix element calculations matched to a parton shower within the uncertainties of the predictions. State-of-the-art theoretical predictions are compared with the differential measurements; none of them simultaneously describes all observables. Differences between any two predictions are smaller than the measurement uncertainties for most observables.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF HIGH ENERGY PHYSICS

ISSN

1029-8479

e-ISSN

—

Volume of the periodical

2025

Issue of the periodical within the volume

1

Country of publishing house

IT - ITALY

Number of pages

77

Pages from-to

"068-1"-"068-77"

UT code for WoS article

001412165700001

EID of the result in the Scopus database

2-s2.0-105011725304