Standard Model predictions for weak decays of $\eta$ mesons

Abstract

The branching ratios of weak decays of $\eta$ mesons are estimated in the framework of the Standard Model. To observe such decays, $\eta$ meson sources with $N_{\eta }>10^{13}$ per year are needed.

Comments: 6 pages, LaTeX file, A postscript version can be obtained from anonymous ftp at ftp://ftp.ifae.es/preprint.ft