New measurements of $|V_{cb}|$ and $|V_{ub}|$ at Belle and Belle II
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January 20, 2026
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Abstract
We present the latest results for the magnitudes of the Cabibbo–Kobayashi–Maskawa (CKM) matrix elements $|V_{cb}|$ and $|V_{ub}|$ from (semi)leptonic $B$ meson decays from Belle and Belle II experiments. The data samples used for the presented measurements are collected at the $\Upsilon(4\mathrm{S})$ resonance and correspond to an integrated luminosity of $711\text{ }\mathrm{fb}^{-1}$ for Belle and $365\text{ }\mathrm{fb}^{-1}$ for Belle~II.
DOI: https://doi.org/10.22323/1.516.0028
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.