#### ${{\boldsymbol X}{(4350)}}$ MASS

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$4350.6$ ${}^{+4.6}_{-5.1}$ $\pm0.7$ $8.8$ ${}^{+4.2}_{-3.2}$ 1
 2010
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit J / \psi}}{{\mathit \phi}}$
 1 Statistical significance of 3.2 $\sigma$.
References:
 SHEN 2010
PRL 104 112004 Evidence for a New Resonance and Search for the ${{\mathit Y}{(4140)}}$ in the ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit J / \psi}}$ Process