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 $\mathit I = 0$ (${{\mathit \eta}}$, ${{\mathit \eta}^{\,'}}$, ${{\mathit h}}$, ${{\mathit h}^{\,'}}$, ${{\mathit \omega}}$, ${{\mathit \phi}}$, ${{\mathit f}}$, ${{\mathit f}^{\,'}}$): ${\mathit {\mathit c}}_{{\mathrm {1}}}({{\mathit u}}{{\overline{\mathit u}}}$ $+$ ${{\mathit d}}{{\overline{\mathit d}}}$) $+$ ${\mathit {\mathit c}}_{{\mathrm {2}}}({{\mathit s}}{{\overline{\mathit s}}}$)

#### ${{\mathit f}_{{{2}}}{(1910)}}$

$I^G(J^{PC})$ = $0^+(2^{+ +})$
We list here three different peaks with close masses and widths seen in the mass distributions of ${{\mathit \omega}}{{\mathit \omega}}$, ${{\mathit \eta}}{{\mathit \eta}^{\,'}}$, and ${{\mathit K}^{+}}{{\mathit K}^{-}}$ final states. ALDE 1991B argues that they are of different nature.
${{\mathit f}_{{{2}}}{(1910)}}$ MASS
 see data
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit \omega}}{{\mathit \omega}}$ MODE $1900 \pm9$ MeV (S = 1.4)
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit \eta}}{{\mathit \eta}^{\,'}}$ MODE $1934 \pm16$ MeV
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ MODE
${{\mathit f}_{{{2}}}{(1910)}}$ WIDTH
 Full width $\Gamma$
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit \omega}}{{\mathit \omega}}$ MODE $167 \pm21$ MeV (S = 1.3)
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit \eta}}{{\mathit \eta}^{\,'}}$ MODE $140 \pm40$ MeV
 ${{\mathit f}_{{{2}}}{(1910)}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ MODE
 $\Gamma_{1}$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ 940
 $\Gamma_{2}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ seen 812
 $\Gamma_{3}$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ 809
 $\Gamma_{4}$ ${{\mathit \eta}}{{\mathit \eta}}$ seen 776
 $\Gamma_{5}$ ${{\mathit \omega}}{{\mathit \omega}}$ seen 538
 $\Gamma_{6}$ ${{\mathit \eta}}{{\mathit \eta}^{\,'}}$ seen 566
 $\Gamma_{7}$ ${{\mathit \eta}^{\,'}}{{\mathit \eta}^{\,'}}$ -1
 $\Gamma_{8}$ ${{\mathit \rho}}{{\mathit \rho}}$ seen 549
 $\Gamma_{9}$ ${{\mathit a}_{{{2}}}{(1320)}}{{\mathit \pi}}$ seen 479
 $\Gamma_{10}$ ${{\mathit f}_{{{2}}}{(1270)}}{{\mathit \eta}}$ seen 247
 FOOTNOTES