Density of States of a Coupled-Channel System
High Energy Physics - Phenomenology
2020-09-09 v1 Nuclear Theory
Abstract
We demonstrate how an effective density of states can be derived from the S-matrix describing a coupled-channel system. Besides the locations of poles, the phase of the determinant of the S-matrix encodes essential details in characterizing the dynamics of resonant and non-resonant interactions. The density of states is computed for the two channel scattering problem (, S-wave), and the influences from the various dynamical structures: poles, roots, branch cuts, and Riemann sheets, are examined.
Cite
@article{arxiv.2007.03392,
title = {Density of States of a Coupled-Channel System},
author = {Pok Man Lo},
journal= {arXiv preprint arXiv:2007.03392},
year = {2020}
}
Comments
10 pages, 3 figures