Shared from RSS:"First observation of the decay $B_s^0 \to K^-\mu^ \nu_\mu$ and a measurement of $|V_{ub}|/|V_{cb}|$. (arXiv:2012.05143v2 [hep-ex] UPDATED)" The first observation of the suppressed semileptonic $B_s^0 \to K^-\mu^ \nu_\mu$ decay is reported. ... http://arxiv.org/abs/2012.05143 ( Feed URL: https://reader.cooleysekula.net/public.php?op=rss