${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
S013.33
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{12}$ ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ $<2.43 \times 10^{-7}$ CL= 90% 209
Category: Hadronic modes with photons or ${{\mathit \ell}}{{\overline{\mathit \ell}}}$ pairs
The following data is related to the above value: