The $D_{s0}^*(2317)^+$ decay to $D_s^+π^0$ and $D_s^{*+}γ$
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912966807388160 |
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| author | Su, Pei-Sen Lyu, Wen-Tao Liang, Wei-Hong Oset, Eulogio |
| author_facet | Su, Pei-Sen Lyu, Wen-Tao Liang, Wei-Hong Oset, Eulogio |
| contents | We study the strong decay of $D_{s0}^*(2317)^+$ to $D_s^+ π^0$ considering the coupled channels of $D^0 K^+, D^+ K^0, D_s^+ η$ and $D_s^+ π^0$ within a picture for the interaction based on the local hidden gauge approach. We also address the problem of the radiative decay to $D_s^{*+} γ$, using the same information obtained from the molecular picture. We obtain a strong width of the $D_{s0}^*(2317)^+$ of about $77 \,\rm keV$ from coupled channels interaction and a radiative decay of about $1.7 \,\rm keV$. We also show that the extra consideration of $π^0-η$ mixing can double the strong decay width to values around $140 \,\rm keV$. The anomalous terms for the radiative decay are considered for the first time, but they are found negligible. We make a thorough discussion of this and other results to the light of the recent measurement of Belle for the ratio of these two decay modes, and make a call for the precise measurement of the two decay widths independently to clarify the present situation concerning the nature of the $D_{s0}^*(2317)^+$ state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_07421 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The $D_{s0}^*(2317)^+$ decay to $D_s^+π^0$ and $D_s^{*+}γ$ Su, Pei-Sen Lyu, Wen-Tao Liang, Wei-Hong Oset, Eulogio High Energy Physics - Phenomenology We study the strong decay of $D_{s0}^*(2317)^+$ to $D_s^+ π^0$ considering the coupled channels of $D^0 K^+, D^+ K^0, D_s^+ η$ and $D_s^+ π^0$ within a picture for the interaction based on the local hidden gauge approach. We also address the problem of the radiative decay to $D_s^{*+} γ$, using the same information obtained from the molecular picture. We obtain a strong width of the $D_{s0}^*(2317)^+$ of about $77 \,\rm keV$ from coupled channels interaction and a radiative decay of about $1.7 \,\rm keV$. We also show that the extra consideration of $π^0-η$ mixing can double the strong decay width to values around $140 \,\rm keV$. The anomalous terms for the radiative decay are considered for the first time, but they are found negligible. We make a thorough discussion of this and other results to the light of the recent measurement of Belle for the ratio of these two decay modes, and make a call for the precise measurement of the two decay widths independently to clarify the present situation concerning the nature of the $D_{s0}^*(2317)^+$ state. |
| title | The $D_{s0}^*(2317)^+$ decay to $D_s^+π^0$ and $D_s^{*+}γ$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.07421 |