PRL 108, 151801 (2012)
LHCb:
INSPIRE
Parameter
Measurement
\(\frac {{\cal{B}} ( \bar{B}^0_s \to J/\psi f^\prime_2 )} { {\cal{B}} ( \bar{B}^0_s \to J/\psi \phi )}\)
\([2.64 \pm 0.27\mbox{ (stat)} \pm 0.24\mbox{ (syst)}] \times 10^{-1}\)