Measurement of $$ t\overline{t} $$ production in association with additional b-jets in the eμ final state in proton–proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
electron
Hadron-Hadron Scattering
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]
p p, scattering
FOS: Physical sciences
QC770-798
top, decay
Top Physics
ATLAS
quark, pair
High Energy Physics - Experiment
High Energy Physics - Experiment (hep-ex)
higher-order, 1
CERN LHC Coll
parton, showers
kinematics
Nuclear and particle physics. Atomic energy. Radioactivity
muon
differential cross section
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
TeV
top, pair production
5106 Nuclear and Plasma Physics
51 Physical Sciences
5107 Particle and High Energy Physics
DOI:
10.1007/jhep01(2025)068
Publication Date:
2025-01-15T15:08:28Z
AUTHORS (2935)
ABSTRACT
A bstract This paper presents measurements of top-antitop quark pair ( $$ t\overline{t} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>t</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> ) production in association with additional b -jets. The analysis utilises 140 fb − 1 proton–proton collision data collected the ATLAS detector at Large Hadron Collider a centre-of-mass energy 13 TeV. Fiducial cross-sections are extracted final state featuring one electron and muon, least three or four Results presented particle level for both integrated normalised differential cross-sections, as functions global event properties, jet kinematics, -jet properties. Observable quantities characterising -jets originating from top decay also measured level, after correcting effects. fiducial consistent t\overline{t}b\overline{b} <mml:mi>b</mml:mi> predictions various next-to-leading-order matrix element calculations matched to parton shower within uncertainties predictions. State-of-the-art theoretical compared measurements; none them simultaneously describes all observables. Differences between any two smaller than measurement most
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