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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   JSON 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 $\sqrt {\mathit s }$ $(1290 - 1500) - i (30 - 140)$ MeV

${{\mathit a}_{{{0}}}{(1450)}}$ MASS $1439$ $\pm34$ MeV (S = 1.8)

${{\mathit a}_{{{0}}}{(1450)}}$ WIDTH $258$ $\pm14$ 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)   $\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \eta}}$ $0.093$ $\pm0.020$ 607   $\Gamma_{2}$ ${{\mathit \pi}}{{\mathit \eta}^{\,'}{(958)}}$ $0.033$ $\pm0.017$ 384   $\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}$ $0.082$ $\pm0.028$ 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