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 $\mathit I = 0$ (${{\mathit \eta}}$, ${{\mathit \eta}^{\,'}}$, ${{\mathit h}}$, ${{\mathit h}^{\,'}}$, ${{\mathit \omega}}$, ${{\mathit \phi}}$, ${{\mathit f}}$, ${{\mathit f}^{\,'}}$): ${\mathit {\mathit c}}_{{\mathrm {1}}}$( ${{\mathit u}}{{\overline{\mathit u}}}$ $+$ ${{\mathit d}}{{\overline{\mathit d}}}$ ) $+$ ${\mathit {\mathit c}}_{{\mathrm {2}}}$( ${{\mathit s}}{{\overline{\mathit s}}}$ ) 		INSPIRE   JSON  (beta) PDGID:
M149

${{\mathit a}_{{0}}{(1450)}}$

$I^G(J^{PC})$ = $1^-(0^{+ +})$ 
See the review on "Spectroscopy of Light Meson Resonances."
${{\mathit a}_{{0}}{(1450)}}$ T-MATRIX POLE $\sqrt {\mathit s }$   $(1290 - 1500) − {\mit i} (30 - 140)$ MeV 
 
${{\mathit a}_{{0}}{(1450)}}$ MASS   $1439 \pm34$ MeV (S = 1.8)
 
${{\mathit a}_{{0}}{(1450)}}$ WIDTH   $258 \pm14$ MeV 
 
Branching fractions are given relative to the one $\mathbf {DEFINED~AS~1}$.
$\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \eta}}$   $0.093\pm{0.020}$ 607
 
$\Gamma_{2}$ ${{\mathit \pi}}{{\mathit \eta}^{\,'}{(958)}}$   $0.033\pm{0.017}$ 384
 
$\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$   $0.082\pm{0.028}$ 523
 
$\Gamma_{4}$ ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$   DEFINED AS 1 458
 
$\Gamma_{5}$ ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}{{\mathit \pi}}$   seen 310
 
$\Gamma_{6}$ ${{\mathit \gamma}}{{\mathit \gamma}}$   seen 719
 
FOOTNOTES