Hidden-bottom hadronic decays of $Υ(10753)$ with a $η^{(\prime)}$ or $ω$ emission

Abstract

By treating the recent evidence of a new bottomonium-like structure Υ(10753) reported by Belle as the missing Υ 1 (3D) bottomonium state, we 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 bJ ω (J=0,1,2) processes. Since Υ( 10753) is above the B B 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.