The light meson decays of $D$ wave charmonia
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908356194598912 |
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| author | Qi, Xiao-Yu Guo, Xing-Dao Chen, Dian-Yong |
| author_facet | Qi, Xiao-Yu Guo, Xing-Dao Chen, Dian-Yong |
| contents | Motivated by the large non-$D\bar{D}$ branching fraction of $ψ(3770)$, we investigate the light meson decays of the $D$-wave charmonia in the present work with the meson loop mechanism. With the parameter range determined by $ψ(3770) \to ϕη$, our estimations of the branching fractions of the light meson decays of $ψ(3770)$ are consistent with the estimations in the literature. As for $ψ(3823)$, the partial widths of $K^\ast \bar{K}^\ast$ channel is estimated to be around 200 keV, which is the the predominant light meson decay channel of $ψ(3823)$. Our estimations also indicate that $K^{(\ast)}\bar{K}^{(\ast)}$ and $ρπ$ are the dominant light meson decay modes of $ψ(3842)$, while $η_{c2}$ dominantly decays into $ρρ$, $K^\ast \bar{K}^\ast$, $ωω$ and $ϕϕ$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_05960 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The light meson decays of $D$ wave charmonia Qi, Xiao-Yu Guo, Xing-Dao Chen, Dian-Yong High Energy Physics - Phenomenology Motivated by the large non-$D\bar{D}$ branching fraction of $ψ(3770)$, we investigate the light meson decays of the $D$-wave charmonia in the present work with the meson loop mechanism. With the parameter range determined by $ψ(3770) \to ϕη$, our estimations of the branching fractions of the light meson decays of $ψ(3770)$ are consistent with the estimations in the literature. As for $ψ(3823)$, the partial widths of $K^\ast \bar{K}^\ast$ channel is estimated to be around 200 keV, which is the the predominant light meson decay channel of $ψ(3823)$. Our estimations also indicate that $K^{(\ast)}\bar{K}^{(\ast)}$ and $ρπ$ are the dominant light meson decay modes of $ψ(3842)$, while $η_{c2}$ dominantly decays into $ρρ$, $K^\ast \bar{K}^\ast$, $ωω$ and $ϕϕ$. |
| title | The light meson decays of $D$ wave charmonia |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.05960 |