Pinpointing Physical Solutions in Y(4230) Decays
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909952554041344 |
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| author | Yuan, Jie Wang, Yadi Zhu, Kai |
| author_facet | Yuan, Jie Wang, Yadi Zhu, Kai |
| contents | To resolve ambiguities from multiple solutions in experimental measurements, we construct a $χ^2$ function incorporating constraints such as isospin conservation and amplitude relations. By minimizing the global $χ^2$, we identify physical solutions for seven hidden-charm decay channels of $Y(4230)$. Crucially, the physical solution for $Y(4230) \to π^{+}π^{-} J/ψ$ corresponds to the largest among four experimental solutions, potentially modifying inputs for theoretical calculations. Additionally, we predict $Γ_{ee} B(Y(4230) \to π^{+}π^{-} ψ(2S))$ based on our results, acknowledging substantial uncertainties in current measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_17204 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Pinpointing Physical Solutions in Y(4230) Decays Yuan, Jie Wang, Yadi Zhu, Kai High Energy Physics - Phenomenology High Energy Physics - Experiment To resolve ambiguities from multiple solutions in experimental measurements, we construct a $χ^2$ function incorporating constraints such as isospin conservation and amplitude relations. By minimizing the global $χ^2$, we identify physical solutions for seven hidden-charm decay channels of $Y(4230)$. Crucially, the physical solution for $Y(4230) \to π^{+}π^{-} J/ψ$ corresponds to the largest among four experimental solutions, potentially modifying inputs for theoretical calculations. Additionally, we predict $Γ_{ee} B(Y(4230) \to π^{+}π^{-} ψ(2S))$ based on our results, acknowledging substantial uncertainties in current measurements. |
| title | Pinpointing Physical Solutions in Y(4230) Decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2508.17204 |