Possible $Σ_c^* \barΣ$ molecular states
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911862266789888 |
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| author | Wu, Bing Dong, Xiang-Kun Guo, Feng-Kun Zou, Bing-Song |
| author_facet | Wu, Bing Dong, Xiang-Kun Guo, Feng-Kun Zou, Bing-Song |
| contents | We investigate the possibility of deuteron-like $Σ_c^*\barΣ$ bound states within the one-boson-exchange model and systematically analyze the effects of the contact-range $δ^{3}(\vec{r}\,)$ potential, the tensor term from the vector-meson exchange, and nonlocal potentials due to the dependence on the sum of the initial and final state center-of-mass momenta. We find that the pion-exchange potential including the $δ^{3}(\vec{r}\,)$ term and the tensor term of the $ρ$-exchange potential exhibit comparable magnitudes but opposite signs for any $S$-wave baryon-antibaryon systems. For the $Σ_c^*\barΣ$ system, it is most likely to form bound states with mass around 3.7 GeV in the $I(J^P)=0(2^-)$ and $1(2^-)$ channels. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_04218 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Possible $Σ_c^* \barΣ$ molecular states Wu, Bing Dong, Xiang-Kun Guo, Feng-Kun Zou, Bing-Song High Energy Physics - Phenomenology Nuclear Theory We investigate the possibility of deuteron-like $Σ_c^*\barΣ$ bound states within the one-boson-exchange model and systematically analyze the effects of the contact-range $δ^{3}(\vec{r}\,)$ potential, the tensor term from the vector-meson exchange, and nonlocal potentials due to the dependence on the sum of the initial and final state center-of-mass momenta. We find that the pion-exchange potential including the $δ^{3}(\vec{r}\,)$ term and the tensor term of the $ρ$-exchange potential exhibit comparable magnitudes but opposite signs for any $S$-wave baryon-antibaryon systems. For the $Σ_c^*\barΣ$ system, it is most likely to form bound states with mass around 3.7 GeV in the $I(J^P)=0(2^-)$ and $1(2^-)$ channels. |
| title | Possible $Σ_c^* \barΣ$ molecular states |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2403.04218 |