Pion production on exotic nuclei by antiproton annihilation

Abstract

Pion production by antiproton annihilation on neutron-or proton-rich nuclei is studied in a fully quantum mechanical description of the reaction process in terms of a distorted wave approach. The elementary elastic NN and the NN → nπ annihilation vertices are obtained from a t-matrix accounting for coupled channels effects. The theoretical amplitudes are used to derive a microscopic N A optical model potential and the meson production vertices. Nuclear structure effects are taken into account microscopically. Results for meson production cross sections are presented.

Meson Production in Antinucleon Annihilation on Nuclei

“…The underlying annihilation processes are still not completely understood and ask therefore for a consistent theoretical study. In our work [1], we aim for a fully quantum mechanical description of the interaction of antinucleons with nucleons and nuclei. At present we are focusing on investigations of two-meson production on nuclei.…”