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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  (beta) PDGID: M075

${{\mathit \pi}{(1800)}}$ $I^G(J^{PC})$ = $1^-(0^{- +})$

See the review on "Non-${{\mathit q}{\overline{\mathit q}}}$ Mesons."

${{\mathit \pi}{(1800)}}$ MASS   $1810 {}^{+9}_{-11}$ MeV (S = 2.2)

${{\mathit \pi}{(1800)}}$ WIDTH   $215 {}^{+7}_{-8}$ MeV

${{\mathit \pi}{(1800)}}$ DECAY MODES
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$   seen 878   $\Gamma_{2}$ ${{\mathit f}_{{0}}{(500)}}{{\mathit \pi}^{-}}$   seen     $\Gamma_{3}$ ${{\mathit f}_{{0}}{(980)}}{{\mathit \pi}^{-}}$   seen 624   $\Gamma_{4}$ ${{\mathit f}_{{0}}{(1370)}}{{\mathit \pi}^{-}}$   seen 366   $\Gamma_{5}$ ${{\mathit f}_{{0}}{(1500)}}{{\mathit \pi}^{-}}$   not seen 232   $\Gamma_{6}$ ${{\mathit \rho}}{{\mathit \pi}^{-}}$   not seen 731   $\Gamma_{7}$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{-}}$   seen 660   $\Gamma_{8}$ ${{\mathit a}_{{0}}{(980)}}{{\mathit \eta}}$   seen 471   $\Gamma_{9}$ ${{\mathit a}_{{2}}{(1320)}}{{\mathit \eta}}$   not seen -1   $\Gamma_{10}$ ${{\mathit f}_{{2}}{(1270)}}{{\mathit \pi}}$   not seen 441   $\Gamma_{11}$ ${{\mathit f}_{{0}}{(1370)}}{{\mathit \pi}^{-}}$   not seen 366   $\Gamma_{12}$ ${{\mathit f}_{{0}}{(1500)}}{{\mathit \pi}^{-}}$   seen 232   $\Gamma_{13}$ ${{\mathit \eta}}{{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}^{-}}$   seen 373   $\Gamma_{14}$ ${{\mathit K}_{{0}}^{*}{(1430)}}{{\mathit K}^{-}}$   seen -1   $\Gamma_{15}$ ${{\mathit K}^{*}{(892)}}{{\mathit K}^{-}}$   not seen 568
FOOTNOTES