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Record |
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Author  |
Dai, L.R.; Lyu, W.T.; Oset, E. |
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Title |
Study of the J/ψ → Λ(Σ)over-bar0 ηreaction |
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Journal Article |
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Year |
2026 |
Publication |
Chinese Physics C |
Abbreviated Journal |
Chin. Phys. C |
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Volume |
50 |
Issue |
11 |
Pages |
113106 - 8pp |
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Keywords |
coupled channel; hadron spectroscopy; B-S equation |
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Abstract |
We study the isospin-violating J/psi -> Lambda(Sigma) over bar (0)eta reaction, recently measured by the BESIII collaboration, by considering the dominant terms involving (Sigma) over bar (0) and pairs of pseudoscalar-baryon particles that together form an SU(3) singlet and can therefore couple to the . We then allow these pairs to undergo final-state interaction to produce J/psi the final . We find that the relevant original channels are and , and that the incomplete cancellation of KN and K Xi and terms involving charged and neutral particles, owing to their different masses, is responsible for the reaction. With this mechanism, we find good agreement with the three experimental mass distributions. |
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Address |
[Dai, Lian-Rong] Huzhou Normal Univ, Sch Sci, Huzhou 313000, Peoples R China, Email: lvwentao9712@163.com |
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Publisher |
IOP Publishing Ltd |
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Language |
English |
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Original Title |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1674-1137 |
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Notes |
WOS:001916203500001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7506 |
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