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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: M011

${{\mathit b}_{{{1}}}{(1235)}}$ $I^G(J^{PC})$ = $1^+(1^{+ -})$

${{\mathit b}_{{{1}}}{(1235)}}$ MASS $1229.5$ $\pm3.2$ MeV (S = 1.6)

${{\mathit b}_{{{1}}}{(1235)}}$ WIDTH $142$ $\pm9$ MeV (S = 1.2)

${{\mathit b}_{{{1}}}{(1235)}}{\mathit D}{\mathrm -wave}/{\mathit S}{\mathrm -wave}$ AMPLITUDE RATIO IN DECAY OF ${{\mathit b}_{{{1}}}{(1235)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}}$ $0.277$ $\pm0.027$  (S = 2.4)

${{\mathit b}_{{{1}}}{(1235)}}{\mathit D}{\mathrm -wave}/{\mathit S}{\mathrm -wave}$ AMPLITUDE PHASE DIFFERENCE IN DECAY OF ${{\mathit b}_{{{1}}}{(1235)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}}$ $10$ $\pm5$ $^\circ{}$

${{\mathit b}_{{{1}}}{(1235)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \omega}}{{\mathit \pi}}$ seen 348   $\Gamma_{2}$ ${{\mathit \pi}^{\pm}}{{\mathit \gamma}}$ ($1.6$ $\pm0.4$) $ \times 10^{-3}$ 607   $\Gamma_{3}$ ${{\mathit \eta}}{{\mathit \rho}}$ seen -1   $\Gamma_{4}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ <50 $\%$ CL=84% 535   $\Gamma_{5}$ ${{\mathit K}^{*}{(892)}^{\pm}}{{\mathit K}^{\mp}}$ seen -1   $\Gamma_{6}$ ${{\mathit K}{\overline{\mathit K}}}$ ${{\mathit \pi}^{0}}$ <8 $\%$ CL=90% 248   $\Gamma_{7}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{\pm}}$ <6 $\%$ CL=90% 235   $\Gamma_{8}$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{\pm}}$ <2 $\%$ CL=90% 235   $\Gamma_{9}$ ${{\mathit \phi}}{{\mathit \pi}}$ <1.5 $\%$ CL=84% 147