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

${{\boldsymbol f}_{{4}}{(2050)}}$ $I^G(J^{PC})$ = $0^+(4^{+ +})$ 

${{\mathit f}_{{4}}{(2050)}}$ MASS   $2018 \pm11$ MeV (S = 2.1)
${{\mathit f}_{{4}}{(2050)}}$ WIDTH   $237 \pm18$ MeV (S = 1.9)
$\Gamma_{1}$ ${{\mathit \omega}}{{\mathit \omega}}$ seen637
$\Gamma_{2}$ ${{\mathit \pi}}{{\mathit \pi}}$ $(17.0\pm{1.5})\%$1000
$\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$ $(6.8^{+3.4}_{-1.8})\times 10^{-3}$880
$\Gamma_{4}$ ${{\mathit \eta}}{{\mathit \eta}}$ $(2.1\pm{0.8})\times 10^{-3}$848
$\Gamma_{5}$ 4 ${{\mathit \pi}^{0}}$ $<1.2\%$964
$\Gamma_{6}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ 1009
$\Gamma_{7}$ ${{\mathit a}_{{2}}{(1320)}}{{\mathit \pi}}$ seen568