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

#### ${{\mathit f}_{{0}}{(980)}}$

$I^G(J^{PC})$ = $0^+(0^{+ +})$
 See related review: Scalar Mesons below 1 GeV
 ${{\mathit f}_{{0}}{(980)}}$ T-MATRIX POLE $\sqrt {\mathit s }$ $(980 - 1010) − {\mit i} (20 - 35)$ MeV
 ${{\mathit f}_{{0}}{(980)}}$ MASS $990 \pm20$ MeV
 ${{\mathit f}_{{0}}{(980)}}$ WIDTH $10\text{ to }100$ MeV
 $\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \pi}}$ seen 476
 $\Gamma_{2}$ ${{\mathit K}}{{\overline{\mathit K}}}$ seen 36
 $\Gamma_{3}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ seen 495
 $\Gamma_{4}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ 495
 FOOTNOTES