${{\mathit Z}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \gamma}}$   Decay Mode Summary INSPIRE   PDGID:
S044.84
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{27}$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \gamma}}$ $<1.4 \times 10^{-6}$ CL= 95% 45541
The following data is related to the above value:
$\Gamma($ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{27}/\Gamma$