Spectroscopy at Belle II

Abstract

The Belle II experiment offers unique possibilities for discovering and interpreting exotic multiquark bound states to probe the fundamentals of QCD. We present recent results obtained on a unique data set collected at energies above the Υ(4𝑆), including searches for the hidden bottom transition between Y(10750) and 𝜒 𝑏𝐽 (1𝑃) and the measurement of the energy dependence of the 𝑒 + 𝑒 − → 𝑏𝑏 cross section.