Some comments on $\bar{n}p$-annihilation branching ratios into $\pi \pi$-, $\bar{K}K$- and $\pi \eta$-channels

Abstract

We give some remarks on the $\bar{n}p$-partial branching ratios in flight at low momenta of antineutron, measured by OBELIX collaboration. The comparison is made to the known branching ratios from the $p\bar{p}$-atomic states. The branching ratio for the reaction $\bar{n}p\to {\pi }^{+}{\pi }^0$ is found to be suppressed in comparison to what follows from the $p\bar{p}$-data. It is also shown, that there is no so called dynamic I=0-amplitude suppression for the process $N\bar{N}\to K\bar{K}$.

Comments: 8 pages, LaTeX, no figures