Annihilation of Antiprotons in Hydrogen at Rest. III. The Reactions p¯+p→ω0+π++π− and p¯+p→ω0+ρ0

Abstract

The reactions (a) $\overline{p}+p\to {\omega }^0+{\pi }^{+}+{\pi }^{-}\left({\pi }^{+}{\pi }^{-} \mathrm{nonresonating}\right)$, and (b) $\overline{p}+p\to {\omega }^0+{\rho }^0$ have been studied for antiprotons at rest. It is found that reaction (a) proceeds from the ${}_{}{}^3{}_{}{}^{}S$ $\overline{p}p$ state, whereas reaction (b) is allowed only for the ${}_{}{}^1{}_{}{}^{}S$ state. Reaction (a) accounts for 0.039±0.005 of all annihilations, and reaction (b) for 0.007±0.003 of all annihilations.