Measurement of the ????̄???? cross section and its ratio to the ???? production cross section using ???????? collisions at SQUARE ROOT???? = 13.6 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493808" target="_blank" >RIV/00216208:11320/24:10493808 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fwNEYWCTsq" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fwNEYWCTsq</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.138376" target="_blank" >10.1016/j.physletb.2023.138376</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the ????̄???? cross section and its ratio to the ???? production cross section using ???????? collisions at SQUARE ROOT???? = 13.6 TeV with the ATLAS detector

Popis výsledku v původním jazyce

The inclusive top-quark-pair production cross section ????????̄???? and its ratio to the ????-boson production cross section have been measured in proton-proton collisions at SQUARE ROOT???? = 13.6 TeV, using 29 fb-1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and ????-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be ????????̄???? = 850 +-3(stat.)+-18(syst.)+-20(lumi.) pb. The ratio of the ????̄???? and the ????-boson production cross sections is also measured, where the ????-boson contribution is determined for inclusive ????+????- and ????+????- events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the ????̄???? cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, ????????̄????DIVISION SLASH???? = 1.145 +- 0.003(stat.) +-0.021(syst.) +- 0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.

Název v anglickém jazyce

Measurement of the ????̄???? cross section and its ratio to the ???? production cross section using ???????? collisions at SQUARE ROOT???? = 13.6 TeV with the ATLAS detector

Popis výsledku anglicky

The inclusive top-quark-pair production cross section ????????̄???? and its ratio to the ????-boson production cross section have been measured in proton-proton collisions at SQUARE ROOT???? = 13.6 TeV, using 29 fb-1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and ????-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be ????????̄???? = 850 +-3(stat.)+-18(syst.)+-20(lumi.) pb. The ratio of the ????̄???? and the ????-boson production cross sections is also measured, where the ????-boson contribution is determined for inclusive ????+????- and ????+????- events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the ????̄???? cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, ????????̄????DIVISION SLASH???? = 1.145 +- 0.003(stat.) +-0.021(syst.) +- 0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

848

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

25

Strana od-do

138376

Kód UT WoS článku

001136441300001

EID výsledku v databázi Scopus

2-s2.0-85183680739