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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.05131 |
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| _version_ | 1866915448449138688 |
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| author | Lu, Jia-Liang Song, Mao Wang, Peng Guo, Jian-You Li, Gang Luo, Xuan |
| author_facet | Lu, Jia-Liang Song, Mao Wang, Peng Guo, Jian-You Li, Gang Luo, Xuan |
| contents | We perform a systematic study of the possible molecular states composed of a pair of heavy mesons such as $D^{(*)}D^{(*)}$, $D^{(*)}\bar{D}^{(*)}$ in the framework of the one-boson-exchange model. The exchanged bosons include the pseudoscalar, scalar and vector mesons($π$, $σ$, $ρ$, $ω$). We use the Bonn approximation to get the interaction potential of one-boson-exchange model, then apply the complex scaling method to calculate the bound and resonant states. The results indicate that the $D^{(*)}D^{(*)}$ and $D^{(*)}\bar{D}^{(*)}$ system can not only form several bound states, but also a P-wave resonant state. The hadron molecular state model can explain the structure of $T_{cc}^+$ as a bound state $DD^{*}$ with quantum number $I(J^P) = 0(1^+)$. In addition, we also discovered other bound and resonant states, which have the potential to be observed experimentally. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_05131 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The bound and resonant states of $D^{(*)}D^{(*)}$ and $D^{(*)}\bar{D}^{(*)}$ with the complex scaling method Lu, Jia-Liang Song, Mao Wang, Peng Guo, Jian-You Li, Gang Luo, Xuan High Energy Physics - Phenomenology We perform a systematic study of the possible molecular states composed of a pair of heavy mesons such as $D^{(*)}D^{(*)}$, $D^{(*)}\bar{D}^{(*)}$ in the framework of the one-boson-exchange model. The exchanged bosons include the pseudoscalar, scalar and vector mesons($π$, $σ$, $ρ$, $ω$). We use the Bonn approximation to get the interaction potential of one-boson-exchange model, then apply the complex scaling method to calculate the bound and resonant states. The results indicate that the $D^{(*)}D^{(*)}$ and $D^{(*)}\bar{D}^{(*)}$ system can not only form several bound states, but also a P-wave resonant state. The hadron molecular state model can explain the structure of $T_{cc}^+$ as a bound state $DD^{*}$ with quantum number $I(J^P) = 0(1^+)$. In addition, we also discovered other bound and resonant states, which have the potential to be observed experimentally. |
| title | The bound and resonant states of $D^{(*)}D^{(*)}$ and $D^{(*)}\bar{D}^{(*)}$ with the complex scaling method |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.05131 |