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:
M185

${{\mathit \pi}_{{{2}}}{(1880)}}$

$I^G(J^{PC})$ = $1^-(2^{- +})$ 
${{\mathit \pi}_{{{2}}}{(1880)}}$ MASS   $1874 {}^{+26}_{-5}$ MeV (S = 1.6)
 
${{\mathit \pi}_{{{2}}}{(1880)}}$ WIDTH   $237 {}^{+33}_{-30}$ MeV (S = 1.2)
 
$\Gamma_{1}$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{-}}$   seen 702
 
$\Gamma_{2}$ ${{\mathit a}_{{{0}}}{(980)}}{{\mathit \eta}}$   seen 528
 
$\Gamma_{3}$ ${{\mathit a}_{{{2}}}{(1320)}}{{\mathit \eta}}$   seen 76
 
$\Gamma_{4}$ ${{\mathit f}_{{{0}}}{(1500)}}{{\mathit \pi}}$   seen 294
 
$\Gamma_{5}$ ${{\mathit f}_{{{1}}}{(1285)}}{{\mathit \pi}}$   seen 485
 
$\Gamma_{6}$ ${{\mathit \omega}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$   seen 744
 
FOOTNOTES