XIII International Conference on Kaon Physics -- Kaon 2025 Mainz

Session

CKM Matrix

9 Sept 2025, 09:50

Alte Mensa (Johannes Gutenberg University Mainz)

74. Current Status of Vcb and Vub

Marzia Bordone (University of Zürich and CERN)

09/09/2025, 09:50

CKM Matrix

Oral Contribution

The CKM matrix elements Vcb and Vub are key inputs for the prediction of flavour-changing processes and for testing the Standard Model at the precision frontier. Despite significant progress on both experimental and theoretical fronts, persistent tensions remain between their inclusive and exclusive determinations. In this talk, I will review the current status of these determinations, with a...

23. Measurements of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix at Belle and Belle II

Sebastiano Raiz

09/09/2025, 10:15

CKM Matrix

Oral Contribution

The Belle and Belle II experiment have collected a 1.2 ab$^{-1}$ sample of $e^+e^-\to B\bar{B}$ decays at a centre-of-mass energy corresponding to the $\Upsilon(4S)$ resonance. The SuperKEKB collider is asymmetric, providing a boost to the $B$ mesons in the laboratory frame, so we can perform measurements of time-dependent $C\!P$ violation. Among the new results, we measure $CP$-violating...