Decays of $Υ(10860)$ and $Υ(10753)$ into $ωχ_{bJ}$
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| Format: | Preprint |
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2025
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| _version_ | 1866911215881551872 |
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| author | Luo, Zheng-Li Song, Yi-Lin Guo, Feng-Kun |
| author_facet | Luo, Zheng-Li Song, Yi-Lin Guo, Feng-Kun |
| contents | In this paper, we model $Υ(10753)$ as a $4S$-$3D$ bottomonium mixture and $Υ(10860)$ as a $5S$-$4D$ mixture, and predict the properties of a new bottomonium state, $Υ(10950)$, as the mixing partner of $Υ(10860)$. The mixing angles are derived from dielectron decay widths and mass shifts of these bottomonia. We consider open-bottom meson loops in the decays of the $D$-wave bottomonium components, based on a nonrelativistic effective field theory power counting. We show that the $S$-$D$ mixing scheme is consistent with the experimental data of the decays of $Υ(10860)$ into $ωχ_{bJ}$ ($J=0,1,2$) and $Υ(10753)$ into $ωχ_{bJ}$ ($J=1,2$). Predictions for the dielectron widths and partial decay widths into $χ_{bJ}ω$ for $Υ(10753)$ and $Υ(10950)$ are presented. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_18720 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Decays of $Υ(10860)$ and $Υ(10753)$ into $ωχ_{bJ}$ Luo, Zheng-Li Song, Yi-Lin Guo, Feng-Kun High Energy Physics - Phenomenology High Energy Physics - Experiment In this paper, we model $Υ(10753)$ as a $4S$-$3D$ bottomonium mixture and $Υ(10860)$ as a $5S$-$4D$ mixture, and predict the properties of a new bottomonium state, $Υ(10950)$, as the mixing partner of $Υ(10860)$. The mixing angles are derived from dielectron decay widths and mass shifts of these bottomonia. We consider open-bottom meson loops in the decays of the $D$-wave bottomonium components, based on a nonrelativistic effective field theory power counting. We show that the $S$-$D$ mixing scheme is consistent with the experimental data of the decays of $Υ(10860)$ into $ωχ_{bJ}$ ($J=0,1,2$) and $Υ(10753)$ into $ωχ_{bJ}$ ($J=1,2$). Predictions for the dielectron widths and partial decay widths into $χ_{bJ}ω$ for $Υ(10753)$ and $Υ(10950)$ are presented. |
| title | Decays of $Υ(10860)$ and $Υ(10753)$ into $ωχ_{bJ}$ |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2508.18720 |