Bottomonium and Bottomonium-like States and Decays at Belle

TL;DR

This paper reports new experimental findings on bottomonium states and transitions, including the first observation of several specific states and decay processes at the Belle experiment, advancing understanding of bottomonium spectroscopy.

Contribution

It presents the first observations of P-wave spin-singlet Bottomonium states, charged Bottomonium-like resonances, and a radiative transition at the Y(5S) resonance.

Findings

First observation of P-wave spin-singlet Bottomonium states

Discovery of two charged Bottomonium-like resonances

First observation of hb(1P)→ηb(1S)γ transition at Y(5S)

Abstract

Recent results from the Belle experiment are presented. We report the results of the first observation of P-wave spin-singlet Bottomonium states, observation of two charged Bottomonium-like resonances and the first observation of the radiative transition hb(1P)\rightarrow{\eta}b(1S){\gamma} at the Y(5S) resonance region.