Bottomonium-like states: physics case for energy scan above the $B\bar{B}$ threshold at Belle-II

A. E. Bondar, R. V. Mizuk, M. B. Voloshin

The Belle-II experiment is expected to collect large data samples at the ${\rm Y}(4S)$ and ${\rm Y}(5S)$ resonances to study primarily $B$ and $B_s$ mesons. We discuss what other data above th…