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${{\mathit a}_{{1}}{(1640)}}$ MASS
$1655 \pm16$ MeV (S = 1.2)
${{\mathit a}_{{1}}{(1640)}}$ WIDTH
$254 \pm40$ MeV (S = 1.8)
Mode
Fraction ($\Gamma_i$ / $\Gamma$)
Scale Factor/ Conf. Level
P (MeV/c)
$\Gamma_{1}$ ${{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$
seen
800
$\Gamma_{2}$ ${{\mathit f}_{{2}}{(1270)}}{{\mathit \pi}}$
seen
314
$\Gamma_{3}$ ${{\mathit \sigma}}{{\mathit \pi}}$
seen
$\Gamma_{4}$ ${{\mathit \rho}}{{\mathit \pi}}$ $_{{\mathit S}{\mathrm -wave}}$
seen
638
$\Gamma_{5}$ ${{\mathit \rho}}{{\mathit \pi}}$ $_{{\mathit D}{\mathrm -wave}}$
seen
638
$\Gamma_{6}$ ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$
seen
607
$\Gamma_{7}$ ${{\mathit f}_{{1}}{(1285)}}{{\mathit \pi}}$
seen
309
$\Gamma_{8}$ ${{\mathit a}_{{1}}{(1260)}}{{\mathit \eta}}$
not seen
-1