${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS(including possibly non- ${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states) INSPIRE search

${{\mathit J / \psi}{(1S)}}$

$I^G(J^{PC})$ = $0^-(1^{- -})$
 ${{\mathit J / \psi}{(1S)}}$ MASS $3096.900 \pm0.006$ MeV
 ${{\mathit J / \psi}{(1S)}}$ WIDTH $92.6 \pm1.7$ keV (S = 1.1)
 $\Gamma_{1}$ hadrons $(87.7\pm{0.5})\%$
 $\Gamma_{2}$ virtual ${{\mathit \gamma}}$ $\rightarrow$ hadrons $(13.50\pm{0.30})\%$
 $\Gamma_{3}$ ${{\mathit g}}{{\mathit g}}{{\mathit g}}$ $(64.1\pm{1.0})\%$
 $\Gamma_{4}$ ${{\mathit \gamma}}{{\mathit g}}{{\mathit g}}$ $(8.8\pm{1.1})\%$
 $\Gamma_{5}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $(5.971\pm{0.032})\%$ 1548
 $\Gamma_{6}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$ [1] $(8.8\pm{1.4})\times 10^{-3}$ 1548
 $\Gamma_{7}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $(5.961\pm{0.033})\%$ 1545
 FOOTNOTES