${{\mathit a}_{{1}}{(1640)}}$ $\rightarrow$ ${{\mathit \sigma}}{{\mathit \pi}}$   Decay Mode Summary INSPIRE   PDGID:
M161.2
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{3}$ ${{\mathit a}_{{1}}{(1640)}}$ $\rightarrow$ ${{\mathit \sigma}}{{\mathit \pi}}$ seen
The following data is related to the above value:
$\Gamma($ ${{\mathit a}_{{1}}{(1640)}}$ $\rightarrow$ ${{\mathit f}_{{2}}{(1270)}}{{\mathit \pi}}$ $)/\Gamma($ ${{\mathit a}_{{1}}{(1640)}}$ $\rightarrow$ ${{\mathit \sigma}}{{\mathit \pi}}$ $)$
$\Gamma_{2}/\Gamma_{3}$