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

${{\mathit \psi}{(2S)}}$ $I^G(J^{PC})$ = $0^-(1^{- -})$ 

See the Review on ``Branching Ratios of ${{\mathit \psi}{(2S)}}$, ${{\mathit \chi}}_{c0,1,2}$ and ${{\mathit \eta}_{{{c}}}{(1S)}}$'' before the ${{\mathit \chi}_{{{c0}}}{(1P)}}$ Listings.
${{\mathit \psi}{(2S)}}$ MASS   $3686.097 \pm0.011$ MeV (S = 1.1)
${\mathit m}_{{{\mathit \psi}{(2S)}}}–{\mathit m}_{{{\mathit J / \psi}{(1S)}}}$   $589.188 \pm0.028$ MeV 
${{\mathit \psi}{(2S)}}$ WIDTH   $293 \pm9$ keV (S = 1.2)
$\Gamma_{1}$ hadrons  $(97.85\pm{0.13})\%$
$\Gamma_{2}$ virtual ${{\mathit \gamma}}$ $\rightarrow$ hadrons  $(1.79\pm{0.04})\%$
$\Gamma_{3}$ ${{\mathit g}}{{\mathit g}}{{\mathit g}}$  $(10.6\pm{1.6})\%$
$\Gamma_{4}$ ${{\mathit \gamma}}{{\mathit g}}{{\mathit g}}$  $(1.03\pm{0.29})\%$
$\Gamma_{5}$ light hadrons  $(15.4\pm{1.5})\%$
$\Gamma_{6}$ ${{\mathit K}_S^0}$ anything  $(16.0\pm{1.1})\%$
$\Gamma_{7}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$  $(7.94\pm{0.22})\times 10^{-3}$ S=1.3 1843
$\Gamma_{8}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$  $(8.0\pm{0.6})\times 10^{-3}$ 1840
$\Gamma_{9}$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$  $(3.1\pm{0.4})\times 10^{-3}$ 489
    fit information