Resonance parameters from K-matrix and T-matrix poles
Nuclear Theory
2009-08-12 v2
Abstract
We extract K-matrix poles from our fits to elastic pion-nucleon scattering and eta-nucleon production data in order to test a recently proposed method for the determination of resonance properties, based on the trace of the K-matrix. We have considered issues associated with the separation of background and resonance contributions, the correspondence between K-matrix and T-matrix poles, and the complicated behavior of eigenphases.
Cite
@article{arxiv.0808.2176,
title = {Resonance parameters from K-matrix and T-matrix poles},
author = {R. L. Workman and R. A. Arndt and M. Paris},
journal= {arXiv preprint arXiv:0808.2176},
year = {2009}
}
Comments
11 pages, 1 figure