Measurement of single top-quark production in association with a W boson 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%3A10494321" target="_blank" >RIV/00216208:11320/24:10494321 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=jX_5ltp5f2" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=jX_5ltp5f2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.110.072010" target="_blank" >10.1103/PhysRevD.110.072010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of single top-quark production in association with a W boson in pp collisions at SQUARE ROOTs=13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

The inclusive cross section for the production of a single top quark in association with a W boson is measured using 140 fb-1 of proton-proton collision data collected with the ATLAS detector at SQUARE ROOTs = 13 TeV. Events containing two charged leptons and at least one jet identified as originating from a b-quark are selected. A multivariate discriminant is constructed to separate the tW signal from the t-t background. The cross section is extracted using a profile likelihood fit to the signal and control regions and it is measured to be σtW 1/4 75þ15-14 pb, in good agreement with the Standard Model prediction. The measured cross section is used to extract a value for the left-handed form factor at the Wtb vertex times the Cabibbo-Kobayashi-Maskawa matrix element jfLVVtbj of 0.97 0.10.

Název v anglickém jazyce

Measurement of single top-quark production in association with a W boson in pp collisions at SQUARE ROOTs=13 TeV with the ATLAS detector

Popis výsledku anglicky

The inclusive cross section for the production of a single top quark in association with a W boson is measured using 140 fb-1 of proton-proton collision data collected with the ATLAS detector at SQUARE ROOTs = 13 TeV. Events containing two charged leptons and at least one jet identified as originating from a b-quark are selected. A multivariate discriminant is constructed to separate the tW signal from the t-t background. The cross section is extracted using a profile likelihood fit to the signal and control regions and it is measured to be σtW 1/4 75þ15-14 pb, in good agreement with the Standard Model prediction. The measured cross section is used to extract a value for the left-handed form factor at the Wtb vertex times the Cabibbo-Kobayashi-Maskawa matrix element jfLVVtbj of 0.97 0.10.

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

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

110

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

30

Strana od-do

72010

Kód UT WoS článku

001381885400001

EID výsledku v databázi Scopus

2-s2.0-85209915921