Some comments on $\bar n p$-annihilation branching ratios into $π π$-, $\bar K K$- and $πη$-channels

Details Some comments on $\bar n p$-annihilation branching ratios into $π π$-, $\bar K K$- and $πη$-channels Some comments on $\bar n p$-annihilation branching ratios into $π π$-, $\bar K K$- and $πη$-channels

1999-12-22

arxiv.org/abs/hep-ph/9912468v1

Phys.Atom.Nucl.63:1969-1972,2000; Yad.Fiz.63:2061-2064,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, no figures

Scientific paper

10.1134/1.1335095

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 $N\bar N \to K\bar K$.

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