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

${{\mathit \rho}{(770)}}$ $I^G(J^{PC})$ = $1^+(1^{- -})$ 

See related review:
Spectroscopy of Light Meson Resonances
${{\mathit \rho}{(770)}}$ T-MATRIX POLE $\sqrt {\mathit s }$   $(761 - 765) − {\mit i} (71 - 74)$ MeV 
${{\mathit \rho}{(770)}}$ MASS
NEUTRAL ONLY, ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $775.26 \pm0.23$ MeV 
CHARGED ONLY, ${{\mathit \tau}}$ DECAYS and ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $775.11 \pm0.34$ MeV 
MIXED CHARGES, OTHER REACTIONS   $763.0 \pm1.2$ MeV 
CHARGED ONLY, HADROPRODUCED   $766.5 \pm1.1$ MeV 
NEUTRAL ONLY, PHOTOPRODUCED   $769.2 \pm0.9$ MeV 
NEUTRAL ONLY, OTHER REACTIONS   $769.0 \pm0.9$ MeV (S = 1.4)
${\mathit m}_{{{\mathit \rho}{(770)}^{0}}}–{\mathit m}_{{{\mathit \rho}{(770)}^{\pm}}}$   $-0.7 \pm0.8$ MeV (S = 1.5)
${\mathit m}_{{{\mathit \rho}{(770)}^{+}}}–{\mathit m}_{{{\mathit \rho}{(770)}^{-}}}$
${{\mathit \rho}{(770)}}$ RANGE PARAMETER   $5.3 {}^{+0.9}_{-0.7}$ GeV${}^{-1}$ 
${{\mathit \rho}{(770)}}$ WIDTH
NEUTRAL ONLY, ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $147.4 \pm0.8$ MeV (S = 2.0)
CHARGED ONLY, ${{\mathit \tau}}$ DECAYS and ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $149.1 \pm0.8$ MeV 
MIXED CHARGES, OTHER REACTIONS   $149.5 \pm1.3$ MeV 
CHARGED ONLY, HADROPRODUCED   $150.2 \pm2.4$ MeV 
NEUTRAL ONLY, PHOTOPRODUCED   $151.5 {}^{+1.9}_{-2.1}$ MeV 
NEUTRAL ONLY, OTHER REACTIONS   $150.9 \pm1.7$ MeV (S = 1.1)
${\Gamma}_{{\mathit \rho}{(770)}^{0}}–{\Gamma}_{{\mathit \rho}{(770)}^{\pm}}$   $0.3 \pm1.3$ MeV (S = 1.4)
${\Gamma}_{{\mathit \rho}{(770)}^{+}}–{\Gamma}_{{\mathit \rho}{(770)}^{-}}$   $1.8 \pm2.1$  
$\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \pi}}$  $(\sim100)\%$ 363
    fit information