${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$   Decay Mode Summary INSPIRE   PDGID:
S012.4
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{12}$ ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $<9 \times 10^{-9}$ CL= 90% 249
Category: $\mathit CP$ violating ($\mathit CP$) and $\Delta \mathit S$ = 1 weak neutral current ($\mathit S1$) modes
Note: (S1) Allowed by higher-order electroweak interactions.
The following data is related to the above value:
$\Gamma($ ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{12}/\Gamma$