Alessandro Gaz

10 March 2024

Abstract: The Belle II detector started taking data in 2019, with the goal of extending the physics reach of its predecessor, Belle, which collected about 1 ab−1 of integrated luminosity of e+ e− collisions at a center of mass energy corresponding (or near) to the mass of the Υ(4S) resonance. In this contribution, we present results based on (part of) the Run1 data set of Belle II, corresponding to 424 fb−1 , in some cases combined with the full Belle data set. The results include measurements related to quantities of the CKM Unitarity Triangle, searches for the rare decay B+ -> K nu nubar for Lepton Flavor Universality violating phenomena, and for Dark Sector particles.

Note: Proceedings of the BELLE2-TALK-CONF-2024-009, given at the Epiphany 2024 Conference on January 8th 2024 in Cracow, Poland.