${\boldsymbol {\boldsymbol c}}$ ${\boldsymbol {\overline{\boldsymbol c}}}$ MESONS
(including possibly non- ${\boldsymbol {\boldsymbol q}}$ ${\boldsymbol {\overline{\boldsymbol q}}}$ states)

INSPIRE search

${{\boldsymbol X}{(3940)}}$ $I^G(J^{PC})$ = $?^?(?^{? ?})$

Reported by ABE 2007 , observed in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit X}}$ .

${{\mathit X}{(3940)}}$ MASS

$3942 \pm9$ MeV

${{\mathit X}{(3940)}}$ WIDTH

$37 {}^{+27}_{-17}$ MeV

Decay Modes

$\Gamma_{1}$

${{\mathit D}}{{\overline{\mathit D}}^{*}}$ + c.c.

seen

361

$\Gamma_{2}$

${{\mathit D}}{{\overline{\mathit D}}}$

not seen

638

$\Gamma_{3}$

${{\mathit J / \psi}}{{\mathit \omega}}$

not seen

283