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

${{\boldsymbol a}_{{0}}{(1450)}}$ $I^G(J^{PC})$ = $1^-(0^{+ +})$ 

See minireview on scalar mesons under ${{\mathit f}_{{0}}{(500)}}$.
${{\mathit a}_{{0}}{(1450)}}$ MASS   $1474 \pm19$ MeV 
${{\mathit a}_{{0}}{(1450)}}$ WIDTH   $265 \pm13$ MeV 
$\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \eta}}$ $0.093\pm{0.020}$627
$\Gamma_{2}$ ${{\mathit \pi}}{{\mathit \eta}^{\,'}{(958)}}$ $0.033\pm{0.017}$410
$\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$ $0.082\pm{0.028}$547
$\Gamma_{4}$ ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$ $\sim\sim\sim\sim\mathbf {DEFINED AS 1}$484
$\Gamma_{5}$ ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}{{\mathit \pi}}$ seen342
$\Gamma_{6}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ seen737