${\boldsymbol {\boldsymbol c}}$ ${\boldsymbol {\overline{\boldsymbol c}}}$ 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