Heavy Mesons to Open-Charmed Tetraquark Decays
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911163090993152 |
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| author | Chua, Chun-Khiang |
| author_facet | Chua, Chun-Khiang |
| contents | Motivated by the recent observations of $T^*_{cs0}(2870)^0$, $T^*_{c\bar s 0}(2900)^0$ and $T^*_{c\bar s 0}(2900)^{++}$ open-charmed tetraquark states by LHCb, we study the decays of heavy mesons to these open-charmed tetraquark states ($T$) using a topological amplitude approach. We first obtain the $T\to DP$ and $DS$ strong decay amplitudes by decomposing them into several topological amplitudes, where $P$ is a light pseudo-scalar particle and $S$ is a low-lying scalar particle. Subsequently, weak decay amplitudes of $\overline B\to D\overline T$, $\overline D T$ and $\overline B\to TP$, $TS$ decays are decomposed topologically. In addition, $B^-_c\to T\overline T$ decays are also discussed. Using these results, modes with an unambiguous exotic interpretation in flavor are highlighted. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_05521 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Heavy Mesons to Open-Charmed Tetraquark Decays Chua, Chun-Khiang High Energy Physics - Phenomenology High Energy Physics - Experiment Motivated by the recent observations of $T^*_{cs0}(2870)^0$, $T^*_{c\bar s 0}(2900)^0$ and $T^*_{c\bar s 0}(2900)^{++}$ open-charmed tetraquark states by LHCb, we study the decays of heavy mesons to these open-charmed tetraquark states ($T$) using a topological amplitude approach. We first obtain the $T\to DP$ and $DS$ strong decay amplitudes by decomposing them into several topological amplitudes, where $P$ is a light pseudo-scalar particle and $S$ is a low-lying scalar particle. Subsequently, weak decay amplitudes of $\overline B\to D\overline T$, $\overline D T$ and $\overline B\to TP$, $TS$ decays are decomposed topologically. In addition, $B^-_c\to T\overline T$ decays are also discussed. Using these results, modes with an unambiguous exotic interpretation in flavor are highlighted. |
| title | Heavy Mesons to Open-Charmed Tetraquark Decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.05521 |