${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit e}^{-}}{{\mathit \nu}_{{e}}}$ + c.c.  Decay Mode Summary INSPIRE   PDGID:
M002.204
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{22}$ ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit e}^{-}}{{\mathit \nu}_{{e}}}$ + c.c. $<2.1 \times 10^{-4}$ CL= 90% 469
The following data is related to the above value:
$\Gamma($ ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit e}^{-}}{{\mathit \nu}_{{e}}}$ + c.c.$)/\Gamma($ ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ $)$
$\Gamma_{22}/\Gamma_{1}$