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Title: On the Methods for Constructing Meson-Baryon Reaction Models within Relativistic Quantum Field Theory

Within the relativistic quantum field theory, we analyze the differences between the $$\pi N$$ reaction models constructed from using (1) three-dimensional reductions of Bethe-Salpeter Equation, (2) method of unitary transformation, and (3) time-ordered perturbation theory. Their relations with the approach based on the dispersion relations of S-matrix theory are dicusssed.
Authors:
Publication Date:
OSTI Identifier:
979697
Report Number(s):
JLAB-THY-09-950; DOE/OR/23177-0637
Journal ID: ISSN 0577-9073; CJOPAW; TRN: US201011%%388
DOE Contract Number:
AC05-06OR23177
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chinese Journal of Physics; Journal Volume: 47; Journal Issue: 2
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BETHE-SALPETER EQUATION; DISPERSION RELATIONS; PERTURBATION THEORY; QUANTUM FIELD THEORY; S MATRIX