INSPIRE   JSON  (beta) PDGID:
M268

${{\mathit X}{(6900)}}$

 
State incompatible with a ${{\mathit q}}{{\overline{\mathit q}}}$ structure. See the review on "Heavy Non-${{\mathit q}}{{\overline{\mathit q}}}$ Mesons."
${{\mathit X}{(6900)}}$ MASS   $6886 \pm16$ MeV 
 
${{\mathit X}{(6900)}}$ WIDTH   $168 \pm80$ MeV 
 
$\Gamma_{1}$ ${{\mathit J / \psi}}{{\mathit J / \psi}}$   seen 1504
 
FOOTNOTES