Dynamics ofN−NTotal Cross Sections at Medium Energies

Abstract

We show that a relativistic, one-pion-exchange, three-body theory including the (3,3) isobar and full spin dependence adequately describes the inelastic nucleon-nucleon cross section at energies where only single-pion production is important. Unitarization of the amplitude plays a significant role in obtaining the correct energy dependence. To fit elastic cross sections, however, will require inclusion of short-range potentials.