The Search for $K_L\to \ddot{I}{€}^0\ddot{I}{€}^0{\hat{I}}^3{\hat{I}}^3$ and $K_L\to \ddot{I}{€}^0\ddot{I}{€}^{0}X$ where $X\to 2{\hat{I}}^3$ at the KOTO Experiment

J. Redeker, C. Lin, Y. W. Wah +23

We performed searches for $K_L\to \ddot{I}{€}^0\ddot{I}{€}^{0}X$ where $X$ may be an axion-like particle which promptly decays to two photons, and the first search for $K_L \rightarrow π^0π^…