Measurement of the cross-sections of the electroweak and total production of a Zγpair in association with two jets in ppcollisions at √s=13TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476658" target="_blank" >RIV/00216208:11320/23:10476658 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/23:73622537

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FAW1Qeev3C" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FAW1Qeev3C</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.138222" target="_blank" >10.1016/j.physletb.2023.138222</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the cross-sections of the electroweak and total production of a Zγpair in association with two jets in ppcollisions at √s=13TeV with the ATLAS detector

Popis výsledku v původním jazyce

production of a Zγpair in association with two jets. The analysis uses 140 fb-1of LHC proton-proton collision data taken at SQUARE ROOTs=13 TeV recorded by the ATLAS detector during the years 2015-2018. Events with a Zboson candidate decaying into either an e+e-or μ+μ-pair, a photon and two jets are selected. The electroweak component is extracted by requiring a large dijet invariant mass and by using the information about the centrality of the system and is measured with an observed and expected significance well above five standard deviations. The fiducial pp RIGHTWARDS ARROWZγjjcross-section for the electroweak production is measured to be 3.6 +-0.5fb. The total fiducial cross-section that also includes contributions where the jets arise from strong interactions is measured to be 16.8+2.0-1.8fb. The results are consistent with the Standard Model predictions. Differential cross-sections are also measured using the same events and are compared with parton-shower Monte Carlo simulations. Good agreement is observed between data and predictions.

Název v anglickém jazyce

Measurement of the cross-sections of the electroweak and total production of a Zγpair in association with two jets in ppcollisions at √s=13TeV with the ATLAS detector

Popis výsledku anglicky

production of a Zγpair in association with two jets. The analysis uses 140 fb-1of LHC proton-proton collision data taken at SQUARE ROOTs=13 TeV recorded by the ATLAS detector during the years 2015-2018. Events with a Zboson candidate decaying into either an e+e-or μ+μ-pair, a photon and two jets are selected. The electroweak component is extracted by requiring a large dijet invariant mass and by using the information about the centrality of the system and is measured with an observed and expected significance well above five standard deviations. The fiducial pp RIGHTWARDS ARROWZγjjcross-section for the electroweak production is measured to be 3.6 +-0.5fb. The total fiducial cross-section that also includes contributions where the jets arise from strong interactions is measured to be 16.8+2.0-1.8fb. The results are consistent with the Standard Model predictions. Differential cross-sections are also measured using the same events and are compared with parton-shower Monte Carlo simulations. Good agreement is observed between data and predictions.

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

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

846

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

30

Strana od-do

138222

Kód UT WoS článku

001257131700001

EID výsledku v databázi Scopus

2-s2.0-85176131303