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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/2505.02742 |
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| _version_ | 1866915273853894656 |
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| author | Wang, Jun-Zhang Lin, Zi-Yang Cheng, Jian-Bo Meng, Lu Zhu, Shi-Lin |
| author_facet | Wang, Jun-Zhang Lin, Zi-Yang Cheng, Jian-Bo Meng, Lu Zhu, Shi-Lin |
| contents | We predict the existence of two novel bottomoniumlike states, $Y(10600)$ and $Y(10650)$, as either the $P$-wave $B^{(*)}\bar{B}^{(*)}$ bound state or resonance close to the $B\bar{B}^{*}$ and $B^{*}\bar{B}^{*}$ thresholds, respectively, which are dynamically generated in a coupled-channel framework and have quantum numbers $I(J^{PC})=0(1^{--})$. The first one $Y(10600)$ is identified as the hidden-bottom partner of the recently established charmoniumlike state $G(3900)$, the first candidate of P-wave dimeson resonance in the heavy flavor sector associated with the $D\bar{D}^*/\bar{D}D^*$ scattering dynamics. We predict the line shapes of both $Y(10600)$ and $Y(10650)$ in the cross sections of open bottom processes $e^+e^- \to B\bar{B}^*$ and $e^+e^- \to B^*\bar{B}^*$, both of which exhibit a pronounced peak line shape, and we find that existing experimental data from BelleII show obvious indications of $Y(10650)$. These two new states closely mirror the behavior of $G(3900)$, as their predicted masses lie between the well-known $Υ(4S)$ and $Υ(5S)$, suggesting a manifestly exotic nature once they can be observed by the experiment. Therefore, the experimental search for these new bottomoniumlike states would provide critical evidence for a new class of exotic hadrons of the $P$-wave dimeson and would offer decisive insight into the $XYZ$ spectroscopy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_02742 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergence of new heavy quarkoniumlike states: $Y(10600)$ and $Y(10650)$ Wang, Jun-Zhang Lin, Zi-Yang Cheng, Jian-Bo Meng, Lu Zhu, Shi-Lin High Energy Physics - Phenomenology High Energy Physics - Experiment We predict the existence of two novel bottomoniumlike states, $Y(10600)$ and $Y(10650)$, as either the $P$-wave $B^{(*)}\bar{B}^{(*)}$ bound state or resonance close to the $B\bar{B}^{*}$ and $B^{*}\bar{B}^{*}$ thresholds, respectively, which are dynamically generated in a coupled-channel framework and have quantum numbers $I(J^{PC})=0(1^{--})$. The first one $Y(10600)$ is identified as the hidden-bottom partner of the recently established charmoniumlike state $G(3900)$, the first candidate of P-wave dimeson resonance in the heavy flavor sector associated with the $D\bar{D}^*/\bar{D}D^*$ scattering dynamics. We predict the line shapes of both $Y(10600)$ and $Y(10650)$ in the cross sections of open bottom processes $e^+e^- \to B\bar{B}^*$ and $e^+e^- \to B^*\bar{B}^*$, both of which exhibit a pronounced peak line shape, and we find that existing experimental data from BelleII show obvious indications of $Y(10650)$. These two new states closely mirror the behavior of $G(3900)$, as their predicted masses lie between the well-known $Υ(4S)$ and $Υ(5S)$, suggesting a manifestly exotic nature once they can be observed by the experiment. Therefore, the experimental search for these new bottomoniumlike states would provide critical evidence for a new class of exotic hadrons of the $P$-wave dimeson and would offer decisive insight into the $XYZ$ spectroscopy. |
| title | Emergence of new heavy quarkoniumlike states: $Y(10600)$ and $Y(10650)$ |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2505.02742 |