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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: M147

${{\mathit f}_{{{0}}}{(1370)}}$ $I^G(J^{PC})$ = $0^+(0^{+ +})$

See the review on "Spectroscopy of Light Meson Resonances" and a note on "Non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ Candidates" in PDG 2006, Journal of Physics G33 1 (2006).

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${{\mathit f}_{{{0}}}{(1370)}}$ T-MATRIX POLE $\sqrt {\mathit s }$ $(1250 - 1440) -i (60 - 300)$ MeV

▸  exp ${{\mathit f}_{{{0}}}{(1370)}}$ BREIT-WIGNER MASS

Mass (Breit-Wigner) 1200 to 1500 MeV

${{\mathit \pi}}{{\mathit \pi}}$ MODE

${{\mathit K}}{{\overline{\mathit K}}}$ MODE

4 ${{\mathit \pi}}$ MODE 2(${{\mathit \pi}}{{\mathit \pi}})_{\mathit S}+{{\mathit \rho}}{{\mathit \rho}}$

${{\mathit \eta}}{{\mathit \eta}}$ MODE

COUPLED CHANNEL MODE

▸  exp ${{\mathit f}_{{{0}}}{(1370)}}$ BREIT-WIGNER WIDTH

Full width (Breit-Wigner) 200 to 500 MeV

${{\mathit \pi}}{{\mathit \pi}}$ MODE

${{\mathit K}}{{\overline{\mathit K}}}$ MODE

4 ${{\mathit \pi}}$ MODE 2(${{\mathit \pi}}{{\mathit \pi}})_{\mathit S}+{{\mathit \rho}}{{\mathit \rho}}$

${{\mathit \eta}}{{\mathit \eta}}$ MODE

COUPLED CHANNEL MODE

${{\mathit f}_{{{0}}}{(1370)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \pi}}$ seen 672   $\Gamma_{2}$ 4 ${{\mathit \pi}}$ seen 617   $\Gamma_{3}$ 4 ${{\mathit \pi}^{0}}$ seen 617   $\Gamma_{4}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$ seen 612   $\Gamma_{5}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ seen 615   $\Gamma_{6}$ ${{\mathit \rho}}{{\mathit \rho}}$ seen -1   $\Gamma_{7}$ 2 ${({\mathit \pi}{\mathit \pi})_{{{\mathit S}-{\text{wave}}}}}$ seen     $\Gamma_{8}$ ${{\mathit \pi}{(1300)}}{{\mathit \pi}}$ seen -1   $\Gamma_{9}$ ${{\mathit a}_{{{1}}}{(1260)}}{{\mathit \pi}}$ seen 35   $\Gamma_{10}$ ${{\mathit \eta}}{{\mathit \eta}}$ seen 411   $\Gamma_{11}$ ${{\mathit K}}{{\overline{\mathit K}}}$ seen 475   $\Gamma_{12}$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit n}}{{\mathit \pi}}$ not seen -1   $\Gamma_{13}$ 6 ${{\mathit \pi}}$ not seen 508   $\Gamma_{14}$ ${{\mathit \omega}}{{\mathit \omega}}$ not seen -1   $\Gamma_{15}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ seen 685   $\Gamma_{16}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ not seen 685