LIGHT UNFLAVORED MESONS
($\boldsymbol S$ = $\boldsymbol C$ = $\boldsymbol B$ = 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

${{\boldsymbol f}_{{0}}{(1710)}}$ $I^G(J^{PC})$ = $0^+(0^{+ +})$ 

See the review on "Non-${{\mathit q}{\overline{\mathit q}}}$ Mesons."
${{\mathit f}_{{0}}{(1710)}}$ MASS   $1704 \pm12$ MeV 
${{\mathit f}_{{0}}{(1710)}}$ WIDTH   $123 \pm18$ MeV 
$\Gamma_{1}$ ${{\mathit K}}{{\overline{\mathit K}}}$  seen 694
$\Gamma_{2}$ ${{\mathit \eta}}{{\mathit \eta}}$  seen 652
$\Gamma_{3}$ ${{\mathit \pi}}{{\mathit \pi}}$  seen 841
$\Gamma_{4}$ ${{\mathit \gamma}}{{\mathit \gamma}}$  seen 852
$\Gamma_{5}$ ${{\mathit \omega}}{{\mathit \omega}}$  seen 337