PHYSICAL JOURNAL A

Abstract. Partial-wave scattering amplitudes in baryon-baryon and baryon-antibaryon collisions and am-plitudes for the production and decay of baryon resonances are constructed in the framework of the spin-momentum operator expansion method. The approach is relativistically invariant and it allows us to perform combined analyses of different reactions imposing analyticity and unitarity directly. The role of final-state interactions (triangle and box diagrams) is discussed. PACS. 11.80.Et Partial-wave analysis – 13.30.-a Decays of baryons – 13.60.Le Meson production – 14.20.Gk Baryon resonances with S = 0