Yubo Han

08 July 2024
QCD24

Abstract: The Belle II detector began data collection in 2019 with the objective of surpassing the physics achievements of its predecessor, Belle, which amassed about 1 ab^−1 of integrated luminosity from e+e− collisions at a center of mass energy corresponding to (or near) the mass of the Υ(4S) resonance. In this talk, we present results derived from a portion of the Run 1 data set of Belle II, amounting to 424 fb^−1, and in some instances combined with the complete Belle data set. These results include measurements related to the CKM Unitarity Triangle, the first evidence for the B+ -> K ν ν̅ decay, and tests of Lepton Flavor Universality.