DAMA for meson-baryon scattering

Abstract The generalization of DAMA (dual amplitude with Mandelstam analyticity) to the case of meson‐baryon scattering is studied. To this end trajectories with left‐hand cut are introduced in the model under consideration. Threshold and asymptotic bounds on these trajectories are obtained. Combinations suitable for boson‐fermion and fermion‐fermion amplitudes are constructed. A specific example, namely π N ‐scattering, is considered, for which dual models of invariant amplitudes are constructed.