Challenges in Semileptonic B Decays

P. Gambino, A. S. Kronfeld, M. Rotondo +22

Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, $|V_{ub}|$ and $|V_{cb}|$, are extracted from semileptonic B decays. The results of the B factories, analy…