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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

${{\mathit a}_{{0}}{(1450)}}$ $I^G(J^{PC})$ = $1^-(0^{+ +})$

See the review on "Spectroscopy of Light Meson Resonances."

${{\mathit a}_{{0}}{(1450)}}$ MASS   $1474 \pm19$ MeV

${{\mathit a}_{{0}}{(1450)}}$ WIDTH   $265 \pm13$ MeV

${{\mathit a}_{{0}}{(1450)}}$ Decay Modes
Branching fractions are given relative to the one $\mathbf {DEFINED~AS~1}$.
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \eta}}$   $0.093\pm{0.020}$ 627   $\Gamma_{2}$ ${{\mathit \pi}}{{\mathit \eta}^{\,'}{(958)}}$   $0.033\pm{0.017}$ 410   $\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$   $0.082\pm{0.028}$ 547   $\Gamma_{4}$ ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$   DEFINED AS 1 484   $\Gamma_{5}$ ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}{{\mathit \pi}}$   seen 342   $\Gamma_{6}$ ${{\mathit \gamma}}{{\mathit \gamma}}$   seen 737
FOOTNOTES