${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(2S)}}$ anything  Decay Mode Summary INSPIRE   PDGID:
M048.8
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{1}$ ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(2S)}}$ anything ($10.6$ $\pm0.8$) $ \times 10^{-2}$ 296
The following data is related to the above value: