$\Gamma($ ${{\mathit W}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit W}^{+}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit \nu}}$ $)$
$\Gamma_{6}/\Gamma_{2}$
$\Gamma($ ${{\mathit W}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{6}/\Gamma$