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| Main Authors: | , , |
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| Format: | Preprint |
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2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.01077 |
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| _version_ | 1866912633926451200 |
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| author | Song, Qing-Fu Lü, Qi-Fang Xiong, Xiaonu |
| author_facet | Song, Qing-Fu Lü, Qi-Fang Xiong, Xiaonu |
| contents | At present work, we systematically study various bottom-strange molecular pentaquarks to search for possible bound states and resonances by adopting one-boson-exchange model within complex scaling method. According to our calculations, we predict several bound and resonant states for bottom baryon $Y_{b}(Λ_b,Σ_b) \bar K^{(*)}$ and $Y_{b} K^{(*)}$ systems. In particular, a bound state in the $I(J^P)=1/2(1/2^-)$ $Σ_{b}\bar{K}/Λ_{b}\bar{K}^*/Σ_{b}\bar{K}^*$ system may correspond to the particle $Ξ_{b}(6227)$. Meanwhile, the predicted bound state with $6303\sim6269~\rm{MeV}$ in the $I(J^P)=1/2(1/2^-)Σ_bK/Λ_bK^*/Σ_bK^*$ system is flavor exotic and does not appear in the spectroscopy of conventional baryons, which provides a practical way to clarify the nature of particle $Ξ_b(6227)$. We highly hope that our proposals can offer helpful information for the future experimental searches. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_01077 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A coupled-channel perspective analysis on bottom-strange molecular pentaquarks Song, Qing-Fu Lü, Qi-Fang Xiong, Xiaonu High Energy Physics - Phenomenology At present work, we systematically study various bottom-strange molecular pentaquarks to search for possible bound states and resonances by adopting one-boson-exchange model within complex scaling method. According to our calculations, we predict several bound and resonant states for bottom baryon $Y_{b}(Λ_b,Σ_b) \bar K^{(*)}$ and $Y_{b} K^{(*)}$ systems. In particular, a bound state in the $I(J^P)=1/2(1/2^-)$ $Σ_{b}\bar{K}/Λ_{b}\bar{K}^*/Σ_{b}\bar{K}^*$ system may correspond to the particle $Ξ_{b}(6227)$. Meanwhile, the predicted bound state with $6303\sim6269~\rm{MeV}$ in the $I(J^P)=1/2(1/2^-)Σ_bK/Λ_bK^*/Σ_bK^*$ system is flavor exotic and does not appear in the spectroscopy of conventional baryons, which provides a practical way to clarify the nature of particle $Ξ_b(6227)$. We highly hope that our proposals can offer helpful information for the future experimental searches. |
| title | A coupled-channel perspective analysis on bottom-strange molecular pentaquarks |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.01077 |