Pion-nucleon scattering in a Bethe-Salpeter approach
A. D. Lahiff, I. R. Afnan
Abstract
A covariant model of elastic pion-nucleon scattering based on the Bethe-Salpeter equation is presented. We obtain a good description of the S- and P-wave phase shifts up to 360 MeV laboratory energy. We also compare results from the K-matrix approach and several 3-dimensional quasipotential equations to the Bethe-Salpeter equation.
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