PRD 89, 092006 (2014)
LHCb:
INSPIRE
Parameter
Measurement
\(\frac{{\cal{B}} ( \bar{B}^{0}_s \to J/\psi f_0(500) ) \times {\cal{B}} ( f_0(500) \to \pi^{+} \pi^{-} )} { {\cal{B}} ( \bar{B}^{0}_s \to J/\psi f_0(980) )) \times {\cal{B}} ( f_0(500) \to \pi^{+} \pi^{-} )}\)
\(3.4 \times 10^{-2}\)