Speaker
Description
We present the first measurement of $CP$-violation parameters in a time-dependent angular analysis of the decay channel $B^0\to D^{*\pm} \rho^{\mp}$. Thanks to the angular analysis of the vector-vector final state, all the information necessary to extract $2\phi_1 + \phi_3$ can be determined from this decay. This is in contrast to $B^0\to D^{(*)\pm} \pi^{\mp}$, where SU(3) flavour assumptions or QCD calculations are required to determine $CP$-violation parameters. The prospects for this measurement at Belle II will be discussed. We also report a new measurement of time-dependent $CP$ violation in $B\to K^{0}_{S} K^{0}_{S} K^{0}_{S}$, and direct $CP$ violation in $B\to D^{0} \pi^{0}$. These studies are based on the full Belle data set of $772 \times 10^{6}$ $B\overline{B}$ pairs collected at the $\Upsilon(4S)$ resonance.
