Recent Highlights from the Belle II Experiment

TL;DR

The Belle II experiment at SuperKEKB has collected extensive data to study rare B decays, lepton flavor universality, CKM parameters, and the muon g-2, providing key insights into particle physics.

Contribution

This paper highlights recent Belle II results on rare B decays, lepton universality tests, and fundamental parameter measurements, advancing experimental particle physics.

Findings

Evidence for rare B decay modes

Tests supporting lepton flavor universality

Measurements informing CKM unitarity and muon g-2

Abstract

The Belle II experiment operates at the SuperKEKB asymmetric-energy $e^+e^-$ collider. During the Run 1 data taking, we have collected an integrated luminosity of $424\text{ fb}^{-1}$ of collision data at the energy near the $\Upsilon (4S)$ resonance. We present highlights of recent Belle II results on measurements of rare $B$ decays, tests of lepton flavour universality, and measurements that contribute to the determination of the Cabibbo-Kobayashi-Maskawa unitarity triangle and the muon anomalous magnetic moment.