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

ATLAS Collaboration

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2 Scopus citations

Abstract

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=13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 140 fb-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>20 GeV and rapidity |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+≥1c-jet observables, optimized for sensitivity to intrinsic-charm, are compared with benchmark models with different intrinsic-charm fractions.

Original languageEnglish
Article number984
JournalEuropean Physical Journal C
Volume84
Issue number9
DOIs
StatePublished - Sep 2024

Funding

FundersFunder number
BSF-NSF
Australian Research Council
La Caixa Banking Foundation
BMWFW
Centre National pour la Recherche Scientifique et Technique
Fundação para a Ciência e a Tecnologia
European Union, Future Artificial Intelligence Research
Cooperative Research Centres, Australian Government Department of Industry
National Science Foundation
CEA-DRF
Science and Technology Facilities Council
Horizon 2020, ICSC-NextGenerationEU
H2020 Marie Skłodowska-Curie Actions
INFN-CNAF
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministry of Science and Technology, Taiwan
Israel Science Foundation
Wallenberg Foundation
Leverhulme Trust
Baden-Württemberg Stiftung
PROMETEO
Neubauer Family Foundation
Staatssekretariat für Bildung, Forschung und Innovation
The Slovenian Research and Innovation Agency
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Austrian Science Fund
Agencia Nacional de Investigación y Desarrollo
Bundesministerium für Bildung und Forschung
Helmholtz-Gemeinschaft
Danmarks Grundforskningsfond
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Forskningsrådet om Hälsa, Arbetsliv och Välfärd
Karlsruhe Institute of Technology
Canarie
GridKA
Horizon 2020 Framework Programme
Göran Gustafssons Stiftelser
MIZŠ
European Commission
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
European Cooperation in Science and Technology
EU-ESF
International Council of Shopping Centers
RGC
Fundação de Amparo à Pesquisa do Estado de São Paulo
Institutul de Fizică Atomică
Natural Sciences and Engineering Research Council of Canada
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
GenT Programmes Generalitat Valenciana, Spain
Irish Rugby Football Union
Cantons of Bern and Geneva
Chinese Academy of Sciences
Defence Science Institute
MNE
Agencia Nacional de Promoción Científica y Tecnológica
Royal Society
Minerva Foundation
CERN-CZ
National Research Foundation
Ministerstwo Edukacji i Nauki
Generalitat Valenciana
CERN
National Research Council Canada
Brookhaven National Laboratory
Alexander von Humboldt-Stiftung
Multiple Sclerosis Scientific Research Foundation
Caring Futures Institute, Flinders University
British Columbia Knowledge Development Fund
Ministry of Education, Culture, Sports, Science and Technology
Narodowa Agencja Wymiany AkademickiejPPN/PPO/2020/1/00002/U/00001
MUCCACHIST-ERA-19-XAI-00
Narodowe Centrum NaukiUMO-2022/47/O/ST2/00148, UMO-2020/37/B/ST2/01043, UMO-2019/34/E/ST2/00393, 2022/47/B/ST2/03059, 2021/42/E/ST2/00350, UMO-2021/40/C/ST2/00187, UMO-2023/49/B/ST2/04085
Grantová Agentura České RepublikyGACR-24-11373S
European Research CouncilERC 101089007, ERC-948254
DNSRCIN2P3-CNRS
Japan Society for the Promotion of ScienceJP21H05085, JP22H04944, JP22H01227, JP22KK0227
FAIR-NextGenerationEUPE00000013
DRAC21/SCI/017
Ministerio de Ciencia e InnovaciónPID2021-125273NB, RYC2021-031273-I, RYC2022-038164-I, RYC2020-030254-I, PCI2022-135018-2, RYC2019-028510-I
Center for Advancing Research Impact in SocietyJ1-3010
Investissements d’Avenir LabexANR-11-LABX-0012
Ministry of Science and Technology of the People's Republic of ChinaMOST-2023YFA1605700
GenT Programmes Generalitat ValencianaCIDEGENT/2019/023, CIDEGENT/2019/027
European Regional Development FundIDIFEDER/2018/048
H2020 European Research CouncilERC - 101002463
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungRPG-2020-004, SNSF-PCEFP2_194658, NIF-R1-231091
Norwegian Financial Mechanism2014-2021
Fondo Nacional de Desarrollo Científico y Tecnológico1230987, 1230812, 1190886, 1210400
Deutsche ForschungsgemeinschaftDFG-469666862, DFG-CR 312/5-2
North Dakota Game and Fish DepartmentCC-IN2P3
Vetenskapsrådet2021-03651, VR 2018-00482, VR 2022-04683, VR 2023-03403, VR 2022-03845, 2023-04654
Knut och Alice Wallenbergs StiftelseKAW 2022.0358, KAW 2018.0157, KAW 2018.0458, KAW 2019.0447
National Natural Science Foundation of China12275265, NSFC-12175119, NSFC-12075060
Ministerstvo Školství, Mládeže a TělovýchovyPRIMUS/21/SCI/017, CZ.02.01.01/00/22_008/0004632
Norges ForskningsrådRCN-314472
Agence Nationale de la RechercheANR-20-CE31-0013, ANR-21-CE31-0013, ANR-21-CE31-0022
U.S. Department of EnergyECA DE-AC02-76SF00515

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