${{\mathit Z}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S)}}$ X +${{\mathit \Upsilon}{(2S)}}$ X +${{\mathit \Upsilon}{(3S)}}$ X  Decay Mode Summary INSPIRE   PDGID:
S044.69
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{34}$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S)}}$ X +${{\mathit \Upsilon}{(2S)}}$ X +${{\mathit \Upsilon}{(3S)}}$ X ($1.0$ $\pm0.5$) $ \times 10^{-4}$
The following data is related to the above value: