An Existence Proof for Interacting Quantum Field Theories with a Factorizing S-Matrix

Within the context of quantum field theories on two-dimensional Minkowski space with a factorizing S-matrix, a new construction scheme for relativistic model theories is carried out. We show that for a large class of such S-matrices, there exists an associated local quantum field theory in the sense of Haag and Kastler. The crucial step in this approach… (More)