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

${{\boldsymbol \psi}{(4360)}}$

$I^G(J^{PC})$ = $0^-(1^{- -})$ 

also known as ${{\mathit Y}{(4360)}}$; was ${{\mathit X}{(4360)}}$
This state shows properties different from a conventional ${{\mathit q}}{{\overline{\mathit q}}}$ state. A candidate for an exotic structure. See the review on non- ${{\mathit q}}{{\overline{\mathit q}}}$ states. Seen in radiative return from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions at $\sqrt {s }$ = $9.54 - 10.58$ GeV by AUBERT 2007S, WANG 2007D, and LEES 2014F. See also the review on "Spectroscopy of mesons containing two heavy quarks."
${{\mathit \psi}{(4360)}}$ MASS   $4368 \pm13$ MeV (S = 3.7)
 
${{\mathit \psi}{(4360)}}$ WIDTH   $96 \pm7$ MeV 
 
$\Gamma_{1}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$  2184
 
$\Gamma_{2}$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  1059
 
$\Gamma_{3}$ ${{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  seen 573
 
$\Gamma_{4}$ ${{\mathit \psi}_{{2}}{(3823)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  possibly seen 438
 
$\Gamma_{5}$ ${{\mathit J / \psi}}{{\mathit \eta}}$  978
 
$\Gamma_{6}$ ${{\mathit D}^{0}}{{\mathit D}^{*-}}{{\mathit \pi}^{+}}$  861
 
$\Gamma_{7}$ ${{\mathit D}_{{1}}{(2420)}}{{\overline{\mathit D}}}$ + c.c.  possibly seen 416
 
$\Gamma_{8}$ ${{\mathit \chi}_{{c1}}}{{\mathit \gamma}}$  773
 
$\Gamma_{9}$ ${{\mathit \chi}_{{c2}}}{{\mathit \gamma}}$  736
 
FOOTNOTES