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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: M103

${{\mathit \phi}{(2170)}}$ $I^G(J^{PC})$ = $0^-(1^{- -})$

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

${{\mathit \phi}{(2170)}}$ MASS $2164$ $\pm5$ MeV

${{\mathit \phi}{(2170)}}$ WIDTH $88^{+26}_{-21}$ MeV (S = 2.5)

${{\mathit \phi}{(2170)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ seen 1082   $\Gamma_{2}$ ${{\mathit \phi}}{{\mathit \eta}}$ seen 728   $\Gamma_{3}$ ${{\mathit \phi}}{{\mathit \eta}^{\,'}}$ seen 439   $\Gamma_{4}$ ${{\mathit \phi}}{{\mathit \pi}}{{\mathit \pi}}$ seen 815   $\Gamma_{5}$ ${{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$ seen 401   $\Gamma_{6}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ 961   $\Gamma_{7}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ 870   $\Gamma_{8}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit f}_{{{0}}}{(980)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ seen     $\Gamma_{9}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ 874   $\Gamma_{10}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit f}_{{{0}}}{(980)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ seen     $\Gamma_{11}$ ${{\mathit K}^{*0}}{{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ not seen 762   $\Gamma_{12}$ ${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{*}{(892)}^{0}}$ not seen 613   $\Gamma_{13}$ ${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{*}{(892)}^{-}}$ 613   $\Gamma_{14}$ ${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{-}}$ + c.c. 817   $\Gamma_{15}$ ${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{0}}$ 816   $\Gamma_{16}$ ${{\mathit K}{(1460)}^{+}}{{\mathit K}^{-}}$ + c.c.     $\Gamma_{17}$ ${{\mathit K}_{{{1}}}{(1270)}^{+}}{{\mathit K}^{-}}$ + c.c. 598   $\Gamma_{18}$ ${{\mathit K}_{{{1}}}{(1400)}^{+}}{{\mathit K}^{-}}$ + c.c. 473   $\Gamma_{19}$ ${{\mathit K}_{{{2}}}^{*}{(1430)}^{+}}{{\mathit K}^{-}}$ + c.c. 449