Measurement of single top-quark production in the s-channel in proton-proton collisions at root s=13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00373249" target="_blank" >RIV/68407700:21220/23:00373249 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/23:00373249 RIV/68407700:21670/23:00373249

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP06(2023)191" target="_blank" >https://doi.org/10.1007/JHEP06(2023)191</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2023)191" target="_blank" >10.1007/JHEP06(2023)191</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of single top-quark production in the s-channel in proton-proton collisions at root s=13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A measurement of single top-quark production in the s-channel is performed in proton-proton collisions at a centre-of-mass energy of 13TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb(-1). The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is sigma = 8.2(-2.9)(+3.5) pb, consistent with the Standard Model prediction of sigma(SM) = 10.32(-0.36)(+0.40) pb.

Název v anglickém jazyce

Measurement of single top-quark production in the s-channel in proton-proton collisions at root s=13 TeV with the ATLAS detector

Popis výsledku anglicky

A measurement of single top-quark production in the s-channel is performed in proton-proton collisions at a centre-of-mass energy of 13TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb(-1). The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is sigma = 8.2(-2.9)(+3.5) pb, consistent with the Standard Model prediction of sigma(SM) = 10.32(-0.36)(+0.40) pb.

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/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

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

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

6

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

47

Strana od-do

—

Kód UT WoS článku

001035243000001

EID výsledku v databázi Scopus

2-s2.0-85164189245