${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$   Decay Mode Summary INSPIRE   PDGID:
S013.11
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{9}$ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ ($8.64$ $\pm0.06$) $ \times 10^{-4}$ 209
Category: Hadronic modes, including Charge conjugation${\times }$Parity Violating ($\mathit CPV$) modes
Note: (CPV) $\mathit CP$ VIOLATION OBSERVED
The following data is related to the above value:
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$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{9}/\Gamma$
$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)/\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{9}/\Gamma_{8}$
$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)/\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ $)$
$\Gamma_{9}/\Gamma_{6}$
$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)$
$\Gamma_{17}/\Gamma_{9}$
${{\mathit K}_L^0}$ MEAN LIFE