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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:

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

$I^G(J^{PC})$ = $0^-(1^{- -})$

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)

${{\mathit e}^{+}}{{\mathit e}^{-}}$

${{\mathit \phi}}{{\mathit \eta}}$

${{\mathit \phi}}{{\mathit \eta}^{\,'}}$

${{\mathit \phi}}{{\mathit \pi}}{{\mathit \pi}}$

${{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$

${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$

${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit f}_{{{0}}}{(980)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit f}_{{{0}}}{(980)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

${{\mathit K}^{*0}}{{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$

${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{*}{(892)}^{0}}$

${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{*}{(892)}^{-}}$

${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{-}}$ + c.c.

${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{0}}$

${{\mathit K}{(1460)}^{+}}{{\mathit K}^{-}}$ + c.c.

${{\mathit K}_{{{1}}}{(1270)}^{+}}{{\mathit K}^{-}}$ + c.c.

${{\mathit K}_{{{1}}}{(1400)}^{+}}{{\mathit K}^{-}}$ + c.c.

${{\mathit K}_{{{2}}}^{*}{(1430)}^{+}}{{\mathit K}^{-}}$ + c.c.

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