Measurements of the production cross-section for a Z boson in association with b- or c-jets in proton–proton collisions at √s=13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00605447" target="_blank" >RIV/68378271:_____/24:00605447 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/24:00377474 RIV/68407700:21240/24:00377474 RIV/68407700:21340/24:00377474 RIV/68407700:21670/24:00377474 a 2 dalších

Výsledek na webu

<a href="https://hdl.handle.net/11104/0363169" target="_blank" >https://hdl.handle.net/11104/0363169</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-024-13159-w" target="_blank" >10.1140/epjc/s10052-024-13159-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of the production cross-section for a Z boson in association with b- or c-jets in proton–proton collisions at √s=13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

This paper presents a measurement of the production cross-section of a Z boson in association with b- or c-jets, in proton–proton collisions at s=13s ​=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 140 fb−1fb−1. Inclusive and differential cross-sections are measured for events containing a Z boson decaying into electrons or muons and produced in association with at least one b-jet, at least one c-jet, or at least two b-jets with transverse momentum pT>20pT​>20 GeV and rapidity ∣y∣<2.5∣y∣<2.5. Predictions from several Monte Carlo generators based on next-to-leading-order matrix elements interfaced with a parton-shower simulation, with different choices of flavour schemes for initial-state partons, are compared with the measured cross-sections. The results are also compared with novel predictions, based on infrared and collinear safe jet flavour dressing algorithms. Selected Z+≥1 cZ+≥1 c-jet observables, optimized for sensitivity to intrinsic-charm, are compared with benchmark models with different intrinsic-charm fractions.

Název v anglickém jazyce

Measurements of the production cross-section for a Z boson in association with b- or c-jets in proton–proton collisions at √s=13 TeV with the ATLAS detector

Popis výsledku anglicky

This paper presents a measurement of the production cross-section of a Z boson in association with b- or c-jets, in proton–proton collisions at s=13s ​=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 140 fb−1fb−1. Inclusive and differential cross-sections are measured for events containing a Z boson decaying into electrons or muons and produced in association with at least one b-jet, at least one c-jet, or at least two b-jets with transverse momentum pT>20pT​>20 GeV and rapidity ∣y∣<2.5∣y∣<2.5. Predictions from several Monte Carlo generators based on next-to-leading-order matrix elements interfaced with a parton-shower simulation, with different choices of flavour schemes for initial-state partons, are compared with the measured cross-sections. The results are also compared with novel predictions, based on infrared and collinear safe jet flavour dressing algorithms. Selected Z+≥1 cZ+≥1 c-jet observables, optimized for sensitivity to intrinsic-charm, are compared with benchmark models with different intrinsic-charm fractions.

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/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

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

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Svazek periodika

84

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

40

Strana od-do

984

Kód UT WoS článku

001394619500001

EID výsledku v databázi Scopus

2-s2.0-85205704534