${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS
(including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)
INSPIRE   JSON PDGID:
M235

${{\mathit \chi}_{{{c0}}}{(4700)}}$

$I^G(J^{PC})$ = $0^+(0^{+ +})$ 

was ${{\mathit X}{(4700)}}$
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 by AAIJ 2017C in ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \chi}_{{{c0}}}}{{\mathit K}^{+}}$, ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}$ using an amplitude analysis of ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance (accounting for systematic uncertainties) of 5.6 $\sigma $.
${{\mathit \chi}_{{{c0}}}{(4700)}}$ MASS   $4694 {}^{+16}_{-5}$ MeV 
 
${{\mathit \chi}_{{{c0}}}{(4700)}}$ WIDTH   $87 {}^{+18}_{-10}$ MeV 
 
$\Gamma_{1}$ ${{\mathit J / \psi}}{{\mathit \phi}}$   seen 1011
 
FOOTNOTES