Belle: INSPIRE
| Parameter | Measurement |
|---|---|
| \({\cal{B}} ( \bar{B}_s^0 \to J/\psi(1S) \eta )\) | \([5.10 \pm 0.50\mbox{ (stat)} \pm 0.25\mbox{ (syst)} ^{+1.14}_{-0.79}\mbox{ (N_{B_s^{(*)}\bar{B}_s^{(*)}})}] \times 10^{-4}\) |
| \({\cal{B}} ( \bar{B}_s^0 \to J/\psi(1S) \eta^{\prime } )\) | \([3.71 \pm 0.61\mbox{ (stat)} \pm 0.18\mbox{ (syst)} ^{+0.83}_{-0.57}\mbox{ (N_{B_s^{(*)}\bar{B}_s^{(*)}})}] \times 10^{-4}\) |
| \(\frac{ {\cal{B}} ( \bar{B}^0_s \to J/\psi \eta)} {{\cal{B}} ( \bar{B}^0 \to J/\psi \eta^{\prime} ) } \) | \([0.73 \pm 0.14\mbox{ (stat)} \pm 0.02\mbox{ (syst)}]\) |