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

INSPIRE   JSON PDGID: M029

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

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 $43^{+28}_{-18}$ MeV (S = 1.1)

${{\mathit X}{(3940)}}$ DECAY MODES
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit D}}{{\overline{\mathit D}}^{*}}$ + c.c. seen 362   $\Gamma_{2}$ ${{\mathit D}}{{\overline{\mathit D}}}$ not seen 638   $\Gamma_{3}$ ${{\mathit J / \psi}}{{\mathit \omega}}$ not seen 283