LIGHT UNFLAVORED MESONS($\mathit S$ = $\mathit C$ = $\mathit B$ = 0) For $\mathit I = 1$ (${{\mathit \pi}}$, ${{\mathit b}}$, ${{\mathit \rho}}$, ${{\mathit a}}$): ${\mathit {\mathit u}}$ ${\mathit {\overline{\mathit d}}}$, ( ${\mathit {\mathit u}}$ ${\mathit {\overline{\mathit u}}}−$ ${\mathit {\mathit d}}$ ${\mathit {\overline{\mathit d}}})/\sqrt {2 }$, ${\mathit {\mathit d}}$ ${\mathit {\overline{\mathit u}}}$;for $\mathit I = 0$ (${{\mathit \eta}}$, ${{\mathit \eta}^{\,'}}$, ${{\mathit h}}$, ${{\mathit h}^{\,'}}$, ${{\mathit \omega}}$, ${{\mathit \phi}}$, ${{\mathit f}}$, ${{\mathit f}^{\,'}}$): ${\mathit {\mathit c}}_{{\mathrm {1}}}$( ${{\mathit u}}{{\overline{\mathit u}}}$ $+$ ${{\mathit d}}{{\overline{\mathit d}}}$ ) $+$ ${\mathit {\mathit c}}_{{\mathrm {2}}}$( ${{\mathit s}}{{\overline{\mathit s}}}$ ) INSPIRE search

#### ${{\boldsymbol \phi}{(1680)}}$

$I^G(J^{PC})$ = $0^-(1^{- -})$
${{\boldsymbol \phi}{(1680)}}$ MASS
 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ PRODUCTION $1680 \pm20$ MeV
 PHOTOPRODUCTION
 ${{\mathit p}}{{\overline{\mathit p}}}$ ANNIHILATION
${{\boldsymbol \phi}{(1680)}}$ WIDTH
 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ PRODUCTION $150 \pm50$ MeV
 PHOTOPRODUCTION
 ${{\mathit p}}{{\overline{\mathit p}}}$ ANNIHILATION
 $\Gamma_{1}$ ${{\mathit K}}{{\overline{\mathit K}}^{*}{(892)}}$ + c.c. seen 462
 $\Gamma_{2}$ ${{\mathit K}_S^0}$ ${{\mathit K}}{{\mathit \pi}}$ seen 621
 $\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$ seen 680
 $\Gamma_{4}$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$ 677
 $\Gamma_{5}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ seen 840
 $\Gamma_{6}$ ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$ not seen 623
 $\Gamma_{7}$ ${{\mathit \phi}}{{\mathit \pi}}{{\mathit \pi}}$ 482
 $\Gamma_{8}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ seen 544
 $\Gamma_{9}$ ${{\mathit \eta}}{{\mathit \phi}}$ seen 290
 $\Gamma_{10}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$ 329
 $\Gamma_{11}$ ${{\mathit \eta}}{{\mathit \gamma}}$ seen 751
 $\Gamma_{12}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ 623
 FOOTNOTES