High-Energy Nucleon-Nucleon Scattering

Abstract

The nucleon-nucleon problem is discussed from the standpoint of analyticity in angular momentum. A unique continuation of the partial-wave helicity amplitudes is given. The high-energy nucleon-nucleon problem is then considered from the point of view of the various Regge poles that have the same quantum numbers as the nucleon-antinucleon channel. In particular, the contribution of these Regge trajectories to nucleon-antinucleon scattering and, hence, their contribution by crossing to nucleon-nucleon scattering is given. The resulting formulas should be adequate to describe the total cross section and angular distribution for energies greater than approximately 3 BeV in the laboratory system.