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https://hdl.handle.net/1822/87797
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Campo DC | Valor | Idioma |
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dc.contributor.author | Castro, Nuno Filipe | por |
dc.contributor.author | Onofre, A. | por |
dc.contributor.author | ATLAS Collaboration | por |
dc.date.accessioned | 2024-01-02T22:06:13Z | - |
dc.date.available | 2024-01-02T22:06:13Z | - |
dc.date.issued | 2023 | - |
dc.identifier.citation | Aad, G., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., Aboulhorma, A., . . . Zwalinski, L. (2023). Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector. [Article]. PHYSICAL REVIEW LETTERS, 131(15), 151902. doi: 10.1103/PhysRevLett.131.151902 | por |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://hdl.handle.net/1822/87797 | - |
dc.description.abstract | A search is made for potential ccc[over ¯]c[over ¯] tetraquarks decaying into a pair of charmonium states in the four muon final state using proton-proton collision data at sqrt[s]=13 TeV, corresponding to an integrated luminosity of 140 fb^{-1} recorded by the ATLAS experiment at LHC. Two decay channels, J/ψ+J/ψ→4μ and J/ψ+ψ(2S)→4μ, are studied. Backgrounds are estimated based on a hybrid approach involving Monte Carlo simulations and data-driven methods. Statistically significant excesses with respect to backgrounds dominated by the single parton scattering are seen in the di-J/ψ channel consistent with a narrow resonance at 6.9 GeV and a broader structure at lower mass. A statistically significant excess is also seen in the J/ψ+ψ(2S) channel. The fitted masses and decay widths of the structures are reported. | por |
dc.description.sponsorship | (undefined) | por |
dc.language.iso | eng | por |
dc.publisher | American Physical Society (APS) | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.title | Observation of an excess of dicharmonium events in the four-muon final state with the ATLAS detector | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.151902 | por |
oaire.citationStartPage | 151902 | por |
oaire.citationEndPage | 151902 | por |
oaire.citationIssue | 15 | por |
oaire.citationVolume | 131 | por |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.doi | 10.1103/PhysRevLett.131.151902 | por |
dc.identifier.pmid | 37897770 | por |
dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
sdum.journal | Physical Review Letters | por |
oaire.version | VoR | por |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PhysRevLett.131.151902.pdf | 50,19 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons