#### LIGHT UNFLAVORED MESONS ($\mathit S$ = $\mathit C$ = $\mathit B$ = $\mathit{0}$)

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 $\mathit I = 0$ (${{\mathit \eta}}$ , ${{\mathit \eta}^{\,'}}$ , ${{\mathit h}}$ , ${{\mathit h}^{\,'}}$ , ${{\mathit \omega}}$ , ${{\mathit \phi}}$ , ${{\mathit f}}$ , ${{\mathit f}^{\,'}}$ ): ${\mathit {\mathit c}}_{{\mathrm {1}}}$( ${{\mathit u}}{{\overline{\mathit u}}}$ $+$ ${{\mathit d}}{{\overline{\mathit d}}}$ ) $+$ ${\mathit {\mathit c}}_{{\mathrm {2}}}$( ${{\mathit s}}{{\overline{\mathit s}}}$ )
 Form Factors for Semileptonic Kaon (${{\mathit K}}$ $_{{{\mathit \ell}} 3}$), Radiative Pion (${{\mathit \pi}}$ $_{ {{\mathit \ell}}2 {{\mathit \gamma}} }$) and Kaon (${{\mathit K}}$ $_{ {{\mathit \ell}}2 {{\mathit \gamma}} }$) Decays Scalar Mesons below 1 GeV Spectroscopy of Light Meson Resonances