${{\mathit \chi}_{{{b1}}}{(1P)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \psi}{(2S)}}$  Decay Mode Summary INSPIRE   PDGID:
M077.18
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{20}$ ${{\mathit \chi}_{{{b1}}}{(1P)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \psi}{(2S)}}$ $<1.7 \times 10^{-5}$ CL= 90% 3594
The following data is related to the above value: