Relativistic unitary description of pi pi scattering

Abstract

A unitary framework based on the Bakamjian-Thomas construction of relativistic quantum mechanics is used to describe two-pion scattering from threshold to 1400 MeV. The framework properly includes unitarity cuts for one-, two- and three-hadron states and provides an excellent description of the available data for pi pi phase shifts and inelasticities. The role and importance of three-hadron cuts are calculated and discussed.

Published version, 17 pages, 14 figures

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