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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: M020

${{\mathit \pi}_{{{2}}}{(2100)}}$ $I^G(J^{PC})$ = $1^-(2^{- +})$

Needs confirmation.

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${{\mathit \pi}_{{{2}}}{(2100)}}$ MASS $2090$ $\pm29$ MeV

${{\mathit \pi}_{{{2}}}{(2100)}}$ WIDTH $620$ $\pm50$ MeV (S = 1.2)

▸  exp ${{\mathit \pi}_{{{2}}}{(2100)}}$ BRANCHING RATIOS

${\mathit D}{\mathrm -wave}/{\mathit S}{\mathrm -wave}$ RATIO FOR ${{\mathit \pi}_{{{2}}}{(2100)}}$ $\rightarrow$ ${{\mathit f}_{{{2}}}{(1270)}}{{\mathit \pi}}$ $0.39$ $\pm0.23$

${{\mathit \pi}_{{{2}}}{(2100)}}$ DECAY MODES
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ 3 ${{\mathit \pi}}$ seen 1023   $\Gamma_{2}$ ${{\mathit \rho}}{{\mathit \pi}}$ seen 896   $\Gamma_{3}$ ${{\mathit f}_{{{2}}}{(1270)}}{{\mathit \pi}}$ seen 647   $\Gamma_{4}$ (${{\mathit \pi}}{{\mathit \pi}}$ )$_{\mathit s}$ ${{\mathit \pi}}$ seen