${{\boldsymbol \Sigma}^{-}}$ $\rightarrow$ ${{\boldsymbol n}}{{\boldsymbol \pi}^{-}}$ INSPIRE search

$\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ $)/\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{3}/\Gamma_{1}$
S020R2
$\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}_{{\mu}}}$ $)/\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{4}/\Gamma_{1}$
S020R1
$\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ $)/\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{5}/\Gamma_{1}$
S020R3
$\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{2}/\Gamma_{1}$
S020R4