${{\mathit b}}$ -baryon $\rightarrow$ ${{\mathit \Xi}^{-}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything  Decay Mode Summary INSPIRE   PDGID:
S061.1
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{7}$ ${{\mathit b}}$ -baryon $\rightarrow$ ${{\mathit \Xi}^{-}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything ($4.6$ $\pm1.4$) $ \times 10^{-3}$ S=1.2 
The following data is related to the above value:
$\Gamma($ ${{\mathit b}}$ -baryon $\rightarrow$ ${{\mathit \Xi}^{-}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything$)/\Gamma_{\text{total}}$
$\Gamma_{7}/\Gamma$