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

${{\mathit \psi}{(4230)}}$

$I^G(J^{PC})$ = $0^-(1^{- -})$ 

also known as ${{\mathit Y}{(4230)}}$; was ${{\mathit X}{(4230)}}$
The recent measurement of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}}{{\mathit \pi}}$ (ABLIKIM 2017B) led to a downward shift in the mass of the ${{\mathit \psi}{(4260)}}$, also known as Y(4260), such that a distinction between the ${{\mathit \psi}{(4260)}}$ and ${{\mathit \psi}{(4230)}}$ no longer appears justified. Therefore, starting from this edition, we include the data of ABLIKIM 2017B in this node and have listed the ${{\mathit \psi}{(4230)}}$ in the summary tables instead of the ${{\mathit \psi}{(4260)}}$.
${{\mathit \psi}{(4230)}}$ MASS   $4220 \pm15$ MeV 
${{\mathit \psi}{(4230)}}$ WIDTH   $20\text{ to }100 $ MeV 
$\Gamma_{1}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$  2110
$\Gamma_{2}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$  2107
$\Gamma_{3}$ ${{\mathit \omega}}{{\mathit \chi}_{{c0}}}$  seen 171
$\Gamma_{4}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit h}_{{c}}}$  seen 583
$\Gamma_{5}$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit J / \psi}}$  seen 944
$\Gamma_{6}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$  seen 942
$\Gamma_{7}$ ${{\mathit \eta}}{{\mathit J / \psi}}$  seen 848
$\Gamma_{8}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$  seen 426
$\Gamma_{9}$ ${{\mathit \pi}^{+}}{{\mathit D}^{0}}{{\mathit D}^{*-}}$ + c.c.  seen 650
$\Gamma_{10}$ ${{\mathit \Xi}^{-}}{{\overline{\mathit \Xi}}^{+}}$  1645
$\Gamma_{11}$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(3872)}}$  seen 334
$\Gamma_{12}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}_{{c}}}$  seen 992
$\Gamma_{13}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}_{{c}}}$  not seen 1027
$\Gamma_{14}$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \eta}_{{c}}}$  not seen 1049
$\Gamma_{15}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit p}}{{\overline{\mathit p}}}$  not seen 864