Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00577657" target="_blank" >RIV/68378271:_____/23:00577657 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/23:00373924 RIV/68407700:21340/23:00373924 RIV/68407700:21670/23:00373924

Výsledek na webu

<a href="https://hdl.handle.net/11104/0346790" target="_blank" >https://hdl.handle.net/11104/0346790</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.137848" target="_blank" >10.1016/j.physletb.2023.137848</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment

Popis výsledku v původním jazyce

A measurement of the charge asymmetry in top-quark pair (tt¯) production in association with a photon is presented. The measurement is performed in the single-lepton tt¯ decay channel using proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider at CERN at a centre-of-mass-energy of 13 TeV during the years 2015–2018, corresponding to an integrated luminosity of 139 fb−1. The charge asymmetry is obtained from the distribution of the difference of the absolute rapidities of the top quark and antiquark using a profile likelihood unfolding approach. It is measured to be AC=−0.003±0.029 in agreement with the Standard Model expectation.

Název v anglickém jazyce

Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment

Popis výsledku anglicky

A measurement of the charge asymmetry in top-quark pair (tt¯) production in association with a photon is presented. The measurement is performed in the single-lepton tt¯ decay channel using proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider at CERN at a centre-of-mass-energy of 13 TeV during the years 2015–2018, corresponding to an integrated luminosity of 139 fb−1. The charge asymmetry is obtained from the distribution of the difference of the absolute rapidities of the top quark and antiquark using a profile likelihood unfolding approach. It is measured to be AC=−0.003±0.029 in agreement with the Standard Model expectation.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

843

Číslo periodika v rámci svazku

Aug

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

21

Strana od-do

137848

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85165936778