${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   Decay Mode Summary INSPIRE   PDGID:
M070.2
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{7}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $0.05961$ $\pm0.00033$ 1545
The following data is related to the above value:
 ▸ expand all datablocks
$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)$ ${\times }$ $\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{7}\Gamma_{5}/\Gamma$
$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{7}/\Gamma$
$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $)/\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)$
$\Gamma_{5}/\Gamma_{7}$
$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ invisible$)/\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)$
$\Gamma_{364}/\Gamma_{7}$
$\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)$
$\Gamma_{7}$