Investigating the $\mathbf{\Upsilon(10753)\to \Upsilon(1^3D_J)\eta}$ transitions

TL;DR

This paper predicts significant branching ratios for certain bottomonium transitions involving the $
0753$ state, suggesting these decays could be observed at Belle II, thus providing insights into bottomonium structure.

Contribution

It offers the first detailed calculation of branching ratios for $
0753$ transitions to $
31^3D_J$ states with $ta$, under the $4S$-$3D$ mixing scheme.

Findings

Branching ratios for $
0753 o
31^3D_1 ext{ or }2 ext{ with }ta$ reach $10^{-4}-10^{-3}$.

Branching ratio for $
0753 o
31^3D_3 ext{ with }ta$ is around $10^{-6}-10^{-5}$.

Potential for observation at Belle II due to sizable decay rates.

Abstract

In this work, we investigate the $\Upsilon(10753)\to\Upsilon(1^3D_J)\eta$ ($J=1,2,3$) processes, where the $\Upsilon(10753)$ is assigned as a conventional bottomonium under the $4S$-$3D$ mixing scheme. Our result shows that the concerned processes have considerable branching ratios, {\it i.e.}, branching ratios $\mathcal{B}[\Upsilon(10753)\to\Upsilon(1^3D_{1})\eta]$ and $\mathcal{B}[\Upsilon(10753)\to\Upsilon(1^3D_{2})\eta]$ can reach up to the order of magnitude of $10^{-4}-10^{-3}$, while $\mathcal{B}[\Upsilon(10753)\to\Upsilon(1^3D_{3})\eta]$ is around $10^{-6}-10^{-5}$. With the running of Belle II, it is a good opportunity for finding out the concerned hidden-bottom hadronic decays.