Towards resonance properties in the Dyson-Schwinger approach
High Energy Physics - Phenomenology
2019-12-20 v1
Abstract
We give a brief summary of the Dyson-Schwinger and Bethe-Salpeter approach to hadron spectroscopy and report on recent progress in determining resonance properties in this framework. We exemplify the extraction of resonances using a scalar model, where we solve the scattering equation for the four-point scattering amplitude and extract the pole locations on the second Riemann sheet as well as the phase shifts.
Keywords
Cite
@article{arxiv.1912.08873,
title = {Towards resonance properties in the Dyson-Schwinger approach},
author = {Gernot Eichmann},
journal= {arXiv preprint arXiv:1912.08873},
year = {2019}
}
Comments
7 pages, 5 figures. Proceedings for Light Cone 2019, September 16-20, 2019, Ecole Polytechnique, Palaiseau, France