${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$   Decay Mode Summary INSPIRE   PDGID:
S013.9
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{17}$ ${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ ($5.47$ $\pm0.04$) $ \times 10^{-4}$ 249
Category: Other modes with photons or ${{\mathit \ell}}{{\overline{\mathit \ell}}}$ pairs
The following data is related to the above value:
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$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ $)$
$\Gamma_{17}/\Gamma_{6}$
$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ $)/\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)$
$\Gamma_{17}/\Gamma_{9}$
$\Gamma($ ${{\mathit K}_L^0}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{17}/\Gamma$