pdgLive Home   >   ${\mathit {\mathit c}}{\mathit {\overline{\mathit c}}}$ MESONS (including possibly non-${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit \psi}{(4390)}}$   >   ${{\mathit \psi}{(4390)}}$ MASS

${{\mathit \psi}{(4390)}}$ MASS

INSPIRE   PDGID:

M236M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 4390 \pm6}$ OUR AVERAGE $4382.0$ $\pm13.3$ $\pm1.7$ 1 ABLIKIM 2020 O BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit J / \psi}}$ $4391.5$ ${}^{+6.3}_{-6.8}$ $\pm1.0$ ABLIKIM 2017 G BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit h}_{{c}}}$ 1  From a fit of the measured cross section in the range $\sqrt {s }$ = $3.808 - 4.600$ GeV.

References:

ABLIKIM 2020O PR D102 031101 Observation of the $Y(4220)$ and $Y(4360)$ in the process $e^{+}e^{-} \to \eta J/\psi$ ABLIKIM 2017G PRL 118 092002 Evidence of Two Resonant Structures in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit h}_{{c}}}$