Measurements of the inclusive and differential production cross sections of a top-quark–antiquark pair in association with a Z boson at √s=13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551965" target="_blank" >RIV/68378271:_____/21:00551965 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0327168" target="_blank" >http://hdl.handle.net/11104/0327168</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-021-09439-4" target="_blank" >10.1140/epjc/s10052-021-09439-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of the inclusive and differential production cross sections of a top-quark–antiquark pair in association with a Z boson at √s=13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Measurements of both the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a ZZZ boson (ttˉZt ar{t}ZttˉZ) are presented. The measurements are performed by targeting final states with three or four isolated leptons (electrons or muons) and are based on s=13sqrt{s} = 13s ​=13 TeV proton-proton collision data with an integrated luminosity of 139 fb−1^{-1}−1, recorded from 2015 to 2018 with the ATLAS detector at the CERN Large Hadron Collider. The inclusive cross section is measured to be σttˉZ=0.99±0.05sigma_{t ar{t}Z} = 0.99 pm 0.05σttˉZ​=0.99±0.05 (stat.) ±0.08pm 0.08±0.08 (syst.) pb, in agreement with the most precise theoretical predictions. The differential measurements are presented as a function of a number of kinematic variables which probe the kinematics of the ttˉZt system.

Název v anglickém jazyce

Measurements of the inclusive and differential production cross sections of a top-quark–antiquark pair in association with a Z boson at √s=13 TeV with the ATLAS detector

Popis výsledku anglicky

Measurements of both the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a ZZZ boson (ttˉZt ar{t}ZttˉZ) are presented. The measurements are performed by targeting final states with three or four isolated leptons (electrons or muons) and are based on s=13sqrt{s} = 13s ​=13 TeV proton-proton collision data with an integrated luminosity of 139 fb−1^{-1}−1, recorded from 2015 to 2018 with the ATLAS detector at the CERN Large Hadron Collider. The inclusive cross section is measured to be σttˉZ=0.99±0.05sigma_{t ar{t}Z} = 0.99 pm 0.05σttˉZ​=0.99±0.05 (stat.) ±0.08pm 0.08±0.08 (syst.) pb, in agreement with the most precise theoretical predictions. The differential measurements are presented as a function of a number of kinematic variables which probe the kinematics of the ttˉZt system.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LTT17018" target="_blank" >LTT17018: Získávání nových poznatků o mikrosvětě v infrastruktuře CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

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

81

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

43

Strana od-do

737

Kód UT WoS článku

000686674200001

EID výsledku v databázi Scopus

2-s2.0-85113812326