PoS - Proceedings of Science
Volume 374 - Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions (LC2019) - Invited
Towards resonance properties in the Dyson-Schwinger approach
G. Eichmann
Full text: pdf
Pre-published on: May 06, 2020
Published on: May 26, 2020
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-body scattering amplitude and extract the pole locations on the second Riemann sheet as well as the phase shifts.
DOI: https://doi.org/10.22323/1.374.0003
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