PPC 2024: XVII International Conference on Interconnections between Particle Physics and Cosmology

Studies of radiative and electroweak penguin decays of B mesons at Belle and Belle II

15 Oct 2024, 18:15

15m

Seminar Room 1, Convention Center (IIT Hyderabad)

Parallel talk Parallel - Flavour

Speaker

Nadiia Maslova (HEPHY)

Description

The Belle and Belle$$II experiments have collected a 1.1$$ab${}^{-1}$ sample of $e^{+}{e}^{-}\to B\overline{B}$ collisions at the $\mathrm{{\rm Y}}(4S)$ resonance. These data, with low particle multiplicity and constrained initial state kinematics, are an ideal environment to search for rare $B$ meson decays proceeding via electroweak and radiative penguin processes. Results include those of the decay $B\to K^{+}\nu \overline{\nu }$ using an inclusive tagging technique. We also present results on radiative decays $B^0\to \gamma \gamma$, $B\to \rho \gamma$ and $B\to K^{\ast }\gamma$. $CP$ and isospin asymmetries are presented for the latter two decays. We also present results from decays related to $b\to s{\ell }^{+}{\ell }^{-}$ and $b\to d{\ell }^{+}{\ell }^{-}$ transitions, where $\ell$ is an electron or muon.

Presentation materials

Maslova EWP 15.10.24.pdf