Search for a resonance decaying into a scalar particle and a Higgs boson in final states with leptons and two photons in proton-proton collisions at s = 13 TeV with the ATLAS detector

The ATLAS collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A search for a hypothetical heavy scalar particle, X, decaying into a singlet scalar particle, S, and a Standard Model Higgs boson, H, using 140 fb−1 of proton-proton collision data at the centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the LHC is presented. The explored mass range is 300 ≤ mX ≤ 1000 GeV and 170 ≤ mS ≤ 500 GeV. The signature of this search is one or two leptons (e or μ) from the decay of vector bosons originating from the S particle, S → W±W/ZZ, and two photons from the Higgs boson decay, H → γγ. No significant excess is observed above the expected Standard Model background. The observed (expected) upper limits at the 95% confidence level on the cross- section for gg → X → SH, assuming the same S → WW/ZZ branching ratios as for a SM-like heavy Higgs boson, are between 530 (800) fb and 120 (170) fb.

Original languageEnglish
Article number104
JournalJournal of High Energy Physics
Volume2024
Issue number10
DOIs
StatePublished - Oct 2024

Funding

FundersFunder number
Ministerio de Ciencia, Innovación y Universidades
BSF-NSF
Australian Research Council
DRAC
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
National Science Foundation
CEA-DRF
Science and Technology Facilities Council
Horizon 2020, ICSC-NextGenerationEU
H2020 Marie Skłodowska-Curie Actions
INFN-CNAF
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministry of Science and Technology, Taiwan
Israel Science Foundation
Wallenberg Foundation
Leverhulme Trust
Baden-Württemberg Stiftung
MVZI
PROMETEO
Neubauer Family Foundation
Staatssekretariat für Bildung, Forschung und Innovation
The Slovenian Research and Innovation Agency
IDUB AGH
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Austrian Science Fund
Yerevan Physics Institute
Agencia Nacional de Investigación y Desarrollo
Bundesministerium für Bildung und Forschung
Canada Foundation for Innovation
Helmholtz-Gemeinschaft
Danmarks Grundforskningsfond
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Karlsruhe Institute of Technology
Canarie
GridKA
Horizon 2020 Framework Programme
Göran Gustafssons Stiftelser
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
PRIMUS
Agencia Estatal de Investigación
Institutul de Fizică Atomică
Natural Sciences and Engineering Research Council of Canada
National Science and Technology Council
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
CRC Health Group
MNE
Agencia Nacional de Promoción Científica y Tecnológica
Royal Society
Minerva Foundation
CERN-CZ
National Research Foundation
Ministerstwo Edukacji i Nauki
Generalitat Valenciana
CERN
Ministerstvo Školství, Mládeže a Tělovýchovy
National Research Council Canada
Brookhaven National Laboratory
Alexander von Humboldt-Stiftung
Multiple Sclerosis Scientific Research Foundation
British Columbia Knowledge Development Fund
Ministry of Education, Culture, Sports, Science and Technology
UK Research and Innovation
U.S. Department of EnergyECA DE-AC02-76SF00515
Center for Advancing Research Impact in SocietyJ1-3010
Ministry of Science and Technology of the People's Republic of ChinaMOST-2023YFA1605700
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungRPG-2020-004, SNSF — PCEFP2_194658, NIF-R1-231091
Agence Nationale de la RechercheANR-20-CE31-0013, ANR-22-EDIR-0002, ANR-21-CE31-0013, ANR-21-CE31-0022
European Research Council101089007, 948254
Vetenskapsrådet2021-03651, VR 2018-00482, VR 2022-04683, VR 2023-03403, VR 2022-03845, 2023-04654
Ministerio de Ciencia e InnovaciónPID2021-125273NB, RYC2021-031273-I, RYC2022-038164-I, PCI2022-135018-2, RYC2020-030254-I, RYC2019-028510-I
MUCCACHIST-ERA-19-XAI-00
Forskningsrådet om Hälsa, Arbetsliv och VälfärdPRIMUS/21/SCI/017, CZ.02.01.01/00/22_008/0004632
National Natural Science Foundation of China12275265, NSFC — 12175119, NSFC-12075060
Norges ForskningsrådRCN-314472
Investissements d’Avenir LabexANR-11-LABX-0012
FAIR-NextGenerationEUPE00000013
European Regional Development FundIDIFEDER/2018/048
Narodowa Agencja Wymiany AkademickiejPPN/PPO/2020/1/00002/U/00001
Grantová Agentura České RepublikyGACR — 24-11373S
Ministero dell’Istruzione, dell’Università e della RicercaPRIN — 20223N7F8K — PNRR M4.C2.1.1
Deutsche ForschungsgemeinschaftDFG — 469666862, DFG — CR 312/5-2
Narodowe Centrum NaukiUMO-2022/47/O/ST2/00148, UMO-2020/37/B/ST2/01043, UMO-2019/34/E/ST2/00393, 2021/42/E/ST2/00350, 2022/47/B/ST2/03059, UMO-2021/40/C/ST2/00187, UMO-2023/49/B/ST2/04085
GenT Programmes Generalitat ValencianaCIDEGENT/2019/027
Japan Society for the Promotion of ScienceJP23KK0245, JP22H04944, JP22H01227, JP22KK0227
Knut och Alice Wallenbergs StiftelseKAW 2022.0358, KAW 2018.0157, KAW 2018.0458, KAW 2019.0447
North Dakota Game and Fish DepartmentCC-IN2P3
Fondo Nacional de Desarrollo Científico y Tecnológico1230987, 1230812, 1240864
DNSRCIN2P3-CNRS
H2020 European Research CouncilERC — 101002463

    Keywords

    • Hadron-Hadron Scattering
    • Higgs Physics

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