Publication Title

Physics Letters B

Publication Date

1-2008

Document Type

Article

DOI

10.1016/j.physletb.2007.11.003

Keywords

multichannel scattering, baryon resonances, pi and eta mesons

Disciplines

Physics

Abstract

A model-independent method for the determination of resonance parameters as K-matrix pole parameters from a T matrix is presented. The method is based on eliminating the dependence on the choice of channel basis by analyzing the trace of the K and Tmatrices in the coupled-channel formalism, rather than individual matrix elements of the multichannel scattering matrix.


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