${{\mathit \Xi}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$   Decay Mode Summary INSPIRE   PDGID:
S022.3
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{8}$ ${{\mathit \Xi}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $<1.9 \times 10^{-5}$ CL= 90% 304
Category: $\Delta \mathit S$ = 2 forbidden ($\mathit S2$) modes
Note: (S2) Allowed in second-order weak interactions.
The following data is related to the above value:
$\Gamma($ ${{\mathit \Xi}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ $)/\Gamma($ ${{\mathit \Xi}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{8}/\Gamma_{1}$