Description
The Belle and Belle II experiments have collected a $1.6~\mathrm{ab}^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances. These data include a 19.2 fb$^{-1}$ sample of data collected at centre-of-mass energies near the $\Upsilon(10753)$ resonance. We present several scan results including $e^+e-\to \Upsilon(nS)\eta$. In addition, we present a measurement of the $B^{0}$ and $B^+$ meson mass difference.
Author
Steven Robertson
(IPP / University of Alberta)
