Poincare Invariance, Cluster Properties, and Particle Production

Abstract

A method is presented for constructing a class of Poincare invariant quantum mechanical models of systems of a finite number of degrees of freedom that satisfy cluster separability, the spectral condition, but do not conserve particle number. The class of models includes the relativistic Lee model and relativistic isobar models.

Comments: 4 pages, Latex Contributed talk to the XVIII European Conference on Few-Body Problems