${{\mathit \chi}_{{b1}}{(1P)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \psi}{(2S)}}$   Decay Mode Summary INSPIRE   PDGID:
M077.19
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{21}$ ${{\mathit \chi}_{{b1}}{(1P)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \psi}{(2S)}}$ $<6 \times 10^{-5}$ CL= 90% 3298
The following data is related to the above value:
$\Gamma($ ${{\mathit \chi}_{{b1}}{(1P)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \psi}{(2S)}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{21}/\Gamma$