Measurement of the top-quark pole mass in dileptonic (t)over-bar+1-jet events at √s=13 TeV with the ATLAS experiment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512390" target="_blank" >RIV/00216208:11320/25:10512390 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ZsBwwcfUG4" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ZsBwwcfUG4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP12(2025)023" target="_blank" >10.1007/JHEP12(2025)023</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the top-quark pole mass in dileptonic (t)over-bar+1-jet events at √s=13 TeV with the ATLAS experiment
Original language description
A measurement of the top-quark pole mass m(t)(pole) t is presented in t (t) over bar events with an additional jet, t (t) over bar+ 1-jet, produced in pp collisions at root s = 13TeV. The data sample, recorded with the ATLAS experiment during Run 2 of the LHC, corresponds to an integrated luminosity of 140 fb(-1). Events with one electron and one muon of opposite electric charge in the final state are selected to measure the t (t) over bar+ 1-jet differential cross-section as a function of the inverse of the invariant mass of the t (t) over bar + 1-jet system. Iterative Bayesian Unfolding is used to correct the data to enable comparison with fixed-order calculations at next-to-leading-order accuracy in the strong coupling. The process pp. t (t) over barj (2. 3), where top quarks are taken as stable particles, and the process pp. b (b) over barl+nu l- (nu) over barj (2. 7), which includes top-quark decays to the dilepton final state and off-shell effects, are considered. The top-quark mass is extracted using chi(2) fit of the unfolded normalized differential cross-section distribution. The results obtained with the 2. 3 and 2. 7 calculations are compatible within theoretical uncertainties, providing an important consistency check. The more precise determination is obtained for the 2. 3 measurement: m(t)(pole) = 170.7 +/- 0.3 (stat.)+/- 1.4 (syst.)+/- 0.3 (scale)+/- 0.2 (PDF circle plus alpha(S)) GeV, which is in good agreement with other top-quark mass results.
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
10300 - Physical sciences
Result continuities
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)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
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
2025
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
51
Pages from-to
023
UT code for WoS article
001641314200001
EID of the result in the Scopus database
2-s2.0-105028127250