$K\bar{K}$ Threshold Phenomena, $f_0-a_0$ Interference and Kaonium Production

Abstract

We develop a new formalism to study $K\bar{K}$ threshold phenomena with resonances $f_0$, $a_0$ and $K^{+}{K}^{-}$ atom (kaonium) included. The approach provides two possible scenarios for $f_0-a_0$ mixing. Drastic interference patterns can be observed in $K^{+}{K}^{-}$electroproduction at CEBAF, $pd\to {}^{3}HeX$ reaction, and $N\bar{N}$ annihilation.

2 pages; to appear in the proceedings of the XIV Int. Conf. on Particle and Nuclei, Williamsburg, May 22-28, 1996