Analysis of the processes ¯NN→3π, ¯pp→ηπ+π- and ¯pp→ωπ+π- as a test of a dual four-point-function without parity doublets
The five annihilation processes at rest: ¯pn→π+π-π-, ¯pp→π0π+π-, ¯pp→3π0, ¯pp→ηπ+π- and ¯pp→ωπ+π- are simultaneously analyzed by means of a dual quark-symmetric four-point-function without parity doublets. The qualitative features of the mass-spectra are reproduced without free parameters. Predictions for ¯pp→3π0 are made and compared with the results of Lovelace's model. In connection with the calculation of the ratios of rates we discuss the problem of the mass extrapolation for the external particles. The ϱ—ɛ puzzle turns out to be a key problem for the processes under consideration.