Recent Belle II results on electroweak penguins

41st International Conference on High Energy physics, ICHEP2022, Bologna, Italy, 6 Jul 2022 - 13 Jul 2022; Proceedings of Science / International School for Advanced Studies (ICHEP2022), 743 (2022). doi:10.22323/1.414.0743
We report on the recent measurements of electroweak and radiative penguin $B$ decays at the Belle II experiment. We use samples of electron-positron collisions collected at the $\Upsilon(4S)$ resonance. We present the measurement of the branching fractions of $B^{+/0}\to K^*(892)^{+/0}\ell^+\ell^-~(\ell=e, \mu)$, $B^{+/0}\to K^{+/0}J/\psi$, and $B^{+/0}\to X_s\gamma$ decays in the data corresponding to 189 fb$^{-1}$ of integrated luminosity. We also present a search of $B^+\to K^+\nu\bar\nu$ decay in the data corresponding to 63 fb$^{-1}$ of integrated luminosity.
Published by SISSA, Trieste