A Covariant Treatment of Meson-Nucleon Scattering

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Abstract
A covariant equation for the meson-nucleon system is presented, in which the renormalization of divergent processes is carried out to all orders. A closed expression is given for their contribution to the wave function after renormalization, while the contribution coming from finite processes still involves a series expansion. Exact formulas are derived for the scattering phase shifts.