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

${{\boldsymbol \chi}_{{c0}}{(3860)}}$ $I^G(J^{PC})$ = $0^+(0^{+ +})$ 

The assignment $\mathit J{}^{P} = 0+$ is preferred over ${}^{}2{}^{+}$ by 2.5 sigma. Observed by CHILIKIN 2017 using full amplitude analysis of the process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit D}}{{\overline{\mathit D}}}$ , where ${{\mathit D}}$ = ${{\mathit D}^{0}}$, ${{\mathit D}^{+}}$.
${{\mathit \chi}_{{c0}}{(3860)}}$ MASS   $3862 {}^{+50}_{-35}$ MeV 
${{\mathit \chi}_{{c0}}{(3860)}}$ WIDTH   $201 {}^{+180}_{-110}$ MeV 
$\Gamma_{1}$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$  seen 501
$\Gamma_{2}$ ${{\mathit D}^{+}}{{\mathit D}^{-}}$  seen 483