Quantum interference in the e+e- decays of ρ0 and ω-mesons produced in π-p reactions

The study of the π-p → ρ0n and π-p → ωn amplitudes close and below the vector meson production threshold (1.2<√(s)<1.8 GeV) reveals a rich dynamics arising from the presence of specific baryon resonances in this energy range. The interference pattern of the e+e- decays of the ρ0- and ω-mesons produced in π-p reactions reflects directly this dynamics. We discuss this interference pattern in the π-p → e+e-n reaction as function of the total center of mass energy √(s). We emphasize the importance of an experimental study of this reaction, which could be made with the HADES detector and the available pion beam at GSI. (orig.)