Measurement of the total and differential cross-sections of t-tW production in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493938" target="_blank" >RIV/00216208:11320/24:10493938 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=H7.JT-ku6y" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=H7.JT-ku6y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP05(2024)131" target="_blank" >10.1007/JHEP05(2024)131</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the total and differential cross-sections of t-tW production in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Measurements of inclusive and differential production cross-sections of a topquark - top-antiquark pair in association with a W boson (t-tW) are presented. They are performed by targeting final states with two same-sign or three isolated leptons (electrons or muons) and are based on SQUARE ROOTs = 13TeV proton-proton collision data with an integrated luminosity of 140 fb-1, recorded from 2015 to 2018 with the ATLAS detector at the Large Hadron Collider. The inclusive t-tW production cross-section is measured to be 880 +- 80 fb, compared to a reference theoretical prediction of 745 +- 50 (scale) +- 13 (2-loop approx.) +- 19 (PDF, αs) fb. Differential cross-section measurements characterise this process in detail for the first time. Several particle-level observables are compared with a variety of theoretical predictions, which generally agree well with the normalised differential cross-section results. Additionally, the relative charge asymmetry of t-tW+ and t-tW- is measured inclusively to be Arel C = 0.33 +- 0.05, in very good agreement with the theoretical prediction of 0.322 +- 0.003 (scale) +- 0.007 (PDF), as well as differentially.roduction is provided. All measurements are in agreement with the Standard Model prediction of a CP-even Higgs boson.

Název v anglickém jazyce

Measurement of the total and differential cross-sections of t-tW production in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Popis výsledku anglicky

Measurements of inclusive and differential production cross-sections of a topquark - top-antiquark pair in association with a W boson (t-tW) are presented. They are performed by targeting final states with two same-sign or three isolated leptons (electrons or muons) and are based on SQUARE ROOTs = 13TeV proton-proton collision data with an integrated luminosity of 140 fb-1, recorded from 2015 to 2018 with the ATLAS detector at the Large Hadron Collider. The inclusive t-tW production cross-section is measured to be 880 +- 80 fb, compared to a reference theoretical prediction of 745 +- 50 (scale) +- 13 (2-loop approx.) +- 19 (PDF, αs) fb. Differential cross-section measurements characterise this process in detail for the first time. Several particle-level observables are compared with a variety of theoretical predictions, which generally agree well with the normalised differential cross-section results. Additionally, the relative charge asymmetry of t-tW+ and t-tW- is measured inclusively to be Arel C = 0.33 +- 0.05, in very good agreement with the theoretical prediction of 0.322 +- 0.003 (scale) +- 0.007 (PDF), as well as differentially.roduction is provided. All measurements are in agreement with the Standard Model prediction of a CP-even Higgs boson.

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

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2024

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

75

Strana od-do

131

Kód UT WoS článku

001280074900001

EID výsledku v databázi Scopus

2-s2.0-85206519971