PRL 111, 181801 (2013)

Parameter	Measurement
\(\frac{ \sigma(B_c^{+})}{ \sigma(B_s^{0})} \times {\cal B} ( B_c^{+} \to B_s^{0}\pi^{+} )\)	\([2.37 \pm 0.31\mbox{ (stat)} \pm 0.11\mbox{ (syst)} ^{+0.17}_{-0.13}\mbox{ (Bc lifetime)}] \times 10^{-3}\)