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 PDGID:
M036

${{\mathit a}_{{{0}}}{(980)}}$

$I^G(J^{PC})$ = $1^-(0^{+ +})$ 
See related review:
Scalar Mesons below 1 GeV
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${{\mathit a}_{{{0}}}{(980)}}$ T-MATRIX POLE $\sqrt {\mathit s }$ [1] $(970 - 1020) - i (30 - 70)$ MeV 
 
▸  ${{\mathit a}_{{{0}}}{(980)}}$ MASS
▸  ${{\mathit a}_{{{0}}}{(980)}}$ WIDTH
Mode  
Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{1}$ ${{\mathit \eta}}{{\mathit \pi}}$ seen 319
 
$\Gamma_{2}$ ${{\mathit K}}{{\overline{\mathit K}}}$ seen -1
 
$\Gamma_{3}$ ${{\mathit \eta}^{\,'}}{{\mathit \pi}}$ seen -1
 
$\Gamma_{4}$ ${{\mathit \rho}}{{\mathit \pi}}$ not seen 138
 
$\Gamma_{5}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ seen 490
 
$\Gamma_{6}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ 490
 
[1] Our estimate. See the Particle Listings for details.