LHCb-PAPER-2015-047

Parameter	Measurement
\(\frac{f_{\Xi_b^-}}{f_{\Lambda_b^0}}{\cal{B}} ( \Xi_b^- \to \Lambda_b^0\pi^-)\)	\([5.7 \pm 1.8\mbox{ (stat)} ^{+0.8}_{-0.9}\mbox{ (syst)}] \times 10^{-4}\)