Measurements of $\left|V_{cb}\right|$ and $\left|V_{ub}\right|$ at Belle and Belle$~$II
M. Aversano*
on behalf of the Belle and Belle II collaborations*: corresponding author
Pre-published on:
December 17, 2024
Published on:
April 29, 2025
Abstract
The Belle and Belle$~$II experiments have collected a 1.1 ab$^{-1}$ sample of collisions at the $\Upsilon(4S)$ resonance. These data, with low particle multiplicity and constrained initial state kinematics, are an ideal environment to study semileptonic and leptonic decays of the $B$ meson. Combined with theoretical inputs, measurements of both inclusive and exclusive decays yield information about the Cabibbo-Kobayashi-Maskawa matrix elements $V_{cb}$ and $V_{ub}$. We review our latest results, which include the first Belle$~$II results with fully leptonic and inclusive semileptonic decays.
DOI: https://doi.org/10.22323/1.476.0416
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