Search for leptonic charge asymmetry in tt¯W production in final states with three leptons at √s = 13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00576778" target="_blank" >RIV/68378271:_____/23:00576778 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0346193" target="_blank" >https://hdl.handle.net/11104/0346193</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/jhep07(2023)033" target="_blank" >10.1007/jhep07(2023)033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for leptonic charge asymmetry in tt¯W production in final states with three leptons at √s = 13 TeV

Popis výsledku v původním jazyce

A search for the leptonic charge asymmetry (AcℓAcℓ​) of top-quark-antiquark pair production in association with a W boson (tt‾WttW) is presented. The search is performed using final states with exactly three charged light leptons (electrons or muons) and is based on ss ​ = 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider at CERN during the years 2015–2018, corresponding to an integrated luminosity of 139 fb−1−1. A profile-likelihood fit to the event yields in multiple regions corresponding to positive and negative differences between the pseudorapidities of the charged leptons from top-quark and top-antiquark decays is used to extract the charge asymmetry. At reconstruction level, the asymmetry is found to be −0.12 ± 0.14 (stat.) ± 0.05 (syst.).

Název v anglickém jazyce

Search for leptonic charge asymmetry in tt¯W production in final states with three leptons at √s = 13 TeV

Popis výsledku anglicky

A search for the leptonic charge asymmetry (AcℓAcℓ​) of top-quark-antiquark pair production in association with a W boson (tt‾WttW) is presented. The search is performed using final states with exactly three charged light leptons (electrons or muons) and is based on ss ​ = 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider at CERN during the years 2015–2018, corresponding to an integrated luminosity of 139 fb−1−1. A profile-likelihood fit to the event yields in multiple regions corresponding to positive and negative differences between the pseudorapidities of the charged leptons from top-quark and top-antiquark decays is used to extract the charge asymmetry. At reconstruction level, the asymmetry is found to be −0.12 ± 0.14 (stat.) ± 0.05 (syst.).

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

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2023

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

53

Strana od-do

033

Kód UT WoS článku

001062554100001

EID výsledku v databázi Scopus

2-s2.0-85164102382