Measurement of the energy asymmetry in tt¯ j production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00562946" target="_blank" >RIV/68378271:_____/22:00562946 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0337242" target="_blank" >https://hdl.handle.net/11104/0337242</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-022-10101-w" target="_blank" >10.1140/epjc/s10052-022-10101-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the energy asymmetry in tt¯ j production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Popis výsledku v původním jazyce

A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using 139 fb−1139fb−1 of data collected by the ATLAS detector at the Large Hadron Collider during pp collisions at s=13 TeVs ​=13TeV. The observable measures the different probability of top and antitop quarks to have the higher energy as a function of the jet scattering angle with respect to the beam axis. The energy asymmetry is measured in the semileptonic ttˉttˉ decay channel, and the hadronically decaying top quark must have transverse momentum above 350 GeV350GeV. The results are corrected for detector effects to particle level in three bins of the scattering angle of the associated jet. The measurement agrees with the SM prediction at next-to-leading-order accuracy in quantum chromodynamics in all three bins.

Název v anglickém jazyce

Measurement of the energy asymmetry in tt¯ j production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Popis výsledku anglicky

A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using 139 fb−1139fb−1 of data collected by the ATLAS detector at the Large Hadron Collider during pp collisions at s=13 TeVs ​=13TeV. The observable measures the different probability of top and antitop quarks to have the higher energy as a function of the jet scattering angle with respect to the beam axis. The energy asymmetry is measured in the semileptonic ttˉttˉ decay channel, and the hadronically decaying top quark must have transverse momentum above 350 GeV350GeV. The results are corrected for detector effects to particle level in three bins of the scattering angle of the associated jet. The measurement agrees with the SM prediction at next-to-leading-order accuracy in quantum chromodynamics in all three bins.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Svazek periodika

82

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

36

Strana od-do

374

Kód UT WoS článku

000788631800004

EID výsledku v databázi Scopus

2-s2.0-85134045150