LHCb: INSPIRE
| Parameter | Measurement |
|---|---|
| \(\frac{{\cal{B}} \bar{B}^{0} \to \psi(2S) \pi^{+} \pi^{-} }{{\cal{B}} \bar{B}^{0} \to J/\psi \pi^{+} \pi^{-} }\) | \([0.56 \pm 0.07\mbox{ (stat)} \pm 0.05\mbox{ (syst)} \pm 0.01\mbox{ (R(psi))}]\) |
| \(\frac{{\cal{B}} \bar{B}_s^{0} \to \psi(2S) \pi^{+} \pi^{-} }{{\cal{B}} \bar{B}_s^{0} \to J/\psi \pi^{+} \pi^{-} }\) | \([0.34 \pm 0.04\mbox{ (stat)} \pm 0.03\mbox{ (syst)} \pm 0.01\mbox{ (R(psi))}]\) |