Evidence for the charge asymmetry in pp -> t(t)over-bar production at root s=13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00372906" target="_blank" >RIV/68407700:21220/23:00372906 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/23:00372906 RIV/68407700:21670/23:00372906
Result on the web
<a href="https://doi.org/10.1007/JHEP08(2023)077" target="_blank" >https://doi.org/10.1007/JHEP08(2023)077</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2023)077" target="_blank" >10.1007/JHEP08(2023)077</a>
Alternative languages
Result language
angličtina
Original language name
Evidence for the charge asymmetry in pp -> t(t)over-bar production at root s=13 TeV with the ATLAS detector
Original language description
Inclusive and differential measurements of the top-antitop ( t (t) over bar) charge asymmetry A(C)(t (t) over bar) and the leptonic asymmetry A(C)(l (l) over bar) are presented in proton-proton collisions at root s = 13 TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider. The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosity of 139 fb(-1), combines data in the single-lepton and dilepton channels, and employs reconstruction techniques adapted to both the resolved and boosted topologies. A Bayesian unfolding procedure is performed to correct for detector resolution and acceptance effects. The combined inclusive t (t) over bar charge asymmetry is measured to be A(C)(t (t) over bar) = 0.0068 +/- 0.0015, which differs from zero by 4.7 standard deviations. Differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the t (t) over bar system. Both the inclusive and differential measurements are found to be compatible with the Standard Model predictions, at next-to-next-to-leading order in quantum chromodynamics perturbation theory with next-to-leading-order electroweak corrections. The measurements are interpreted in the framework of the Standard Model effective field theory, placing competitive bounds on several Wilson coefficients.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2023
Issue of the periodical within the volume
8
Country of publishing house
IT - ITALY
Number of pages
89
Pages from-to
—
UT code for WoS article
001062398000001
EID of the result in the Scopus database
2-s2.0-85169322582