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Feshbach-Villars formalism and pion-nucleon scattering

Journal Article · · Phys. Rev., C; (United States)
The Feshbach-Villars Hamiltonian formulation of the Klein-Gordon equation is used as the basis for a scattering theory for relativistic, spin-zero, particles. Time dependent and time independent scattering theories are developed. The time independent theory is used as the framework for a separable potential model for ..pi..N elastic scattering in P waves. This potential leads to a ..pi..N T matrix which has the right and left hand cuts associated with two-particle unitarity and crossing, respectively, as well as the direct and crossed nucleon poles with the proper residues. The effects of nucleon recoil are included. With a particular choice of the form factors in the potential, the Chew-Low T matrix is reproduced.
Research Organization:
Department of Physics and Astronomy, State University of New York at Buffalo, Amherst, New York 14260
OSTI ID:
5470266
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 21:4; ISSN PRVCA
Country of Publication:
United States
Language:
English