Hidden-bottom hadronic decays of Υ(10753) with a η^(′) or ω emission

2021/06/30 by Yu-Shuai Li, Zi-Yue Bai, Qi Huang +1 · 2 citations
Physics and Astronomy · #hep-ph #hep-ex

paper · pdf · doi:10.1103/physrevd.104.034036

published as Phys. Rev. D 104, 034036 (2021) · 10 pages, 6 figures and 1 table. Accepted by Phys. Rev. D

arxiv created 2021/08/12 · arxiv updated 2021/09/01

Abstract

In this work, we propose the 4S-3D mixing scheme to assign the Υ(10753) into the conventional bottomonium family. Under this interpretation, we further study its hidden-bottom hadronic decays with a η^(′) or ω emission, which include Υ(10753)→Υ(1S)η^(′), Υ(10753)→ h_b(1P)η and Υ(10753)→χ_bJω (J=0,1,2) processes. Since the Υ(10753) is above the BB threshold, the coupled-channel effect cannot be ignored, thus, when calculating partial decay widths of these Υ(10753) hidden-bottom decays, we apply the hadronic loop mechanism. Our result shows that these discussed decay processes own considerable branching fractions with the order of magnitude of 10^-4∼ 10^-3, which can be accessible at Belle II and other future experiments.

Cited by

• Proposed mixing between 2P and 1F wave charmonia
• Υ(10753)→Υ(nS)π⁺π^- decays induced by hadronic loop mechanism