Evidence of pair production of longitudinally polarised vector bosons and study of CP properties in ZZ → 4ℓ events with the ATLAS detector at √s = 13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10495149" target="_blank" >RIV/00216208:11320/23:10495149 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/23:73628894

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=n6lqkVlA7b" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=n6lqkVlA7b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP12(2023)107" target="_blank" >10.1007/JHEP12(2023)107</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence of pair production of longitudinally polarised vector bosons and study of CP properties in ZZ → 4ℓ events with the ATLAS detector at √s = 13 TeV

Popis výsledku v původním jazyce

A study of the polarisation and CP properties in ZZ production is presented.The used data set corresponds to an integrated luminosity of 140 fb−1 of proton-protoncollisions at a centre-of-mass energy of 13TeV recorded by the ATLAS detector at theLarge Hadron Collider. The ZZ candidate events are reconstructed using two same-flavouropposite-charge electron or muon pairs. The production of two longitudinally polarised Zbosons is measured with a significance of 4.3 standard deviations, and its cross-section ismeasured in a fiducial phase space to be 2.45 ± 0.60 fb, consistent with the next-to-leadingorderStandard Model prediction. The inclusive differential cross-section as a functionof a CP-sensitive angular observable is also measured. The results are used to constrainanomalous CP-odd neutral triple gauge couplings.

Název v anglickém jazyce

Evidence of pair production of longitudinally polarised vector bosons and study of CP properties in ZZ → 4ℓ events with the ATLAS detector at √s = 13 TeV

Popis výsledku anglicky

A study of the polarisation and CP properties in ZZ production is presented.The used data set corresponds to an integrated luminosity of 140 fb−1 of proton-protoncollisions at a centre-of-mass energy of 13TeV recorded by the ATLAS detector at theLarge Hadron Collider. The ZZ candidate events are reconstructed using two same-flavouropposite-charge electron or muon pairs. The production of two longitudinally polarised Zbosons is measured with a significance of 4.3 standard deviations, and its cross-section ismeasured in a fiducial phase space to be 2.45 ± 0.60 fb, consistent with the next-to-leadingorderStandard Model prediction. The inclusive differential cross-section as a functionof a CP-sensitive angular observable is also measured. The results are used to constrainanomalous CP-odd neutral triple gauge couplings.

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

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

—

Svazek periodika

2023

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

48

Strana od-do

107

Kód UT WoS článku

001173322400001

EID výsledku v databázi Scopus

2-s2.0-85186558917