Excited light baryons from quark-gluon-level calculations

• DOI: 10.1142/9789811219313_0007
• Publication Date: 2020-08-18T02:51:35Z
• Authors: J. Segovia; C. Chen; Z.-F. Cui; Y. Lu; C.D. Roberts
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Lattice; High Energy Physics - Phenomenology (hep-ph); Nuclear Theory; High Energy Physics - Lattice (hep-lat); 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; 7. Clean energy

The task of mapping and explaining the spectrum of baryons and the structure of these states in terms of quarks and gluons is a longstanding challenge in hadron physics, which is likely to persist for another decade or more. We review the progress made in this topic using a functional method based on Dyson-Schwinger equations. This framework provides a non-perturbative, Poincar��-covariant continuum formulation of Quantum Chromodynamics which is able to extract novel insight on baryon properties since the physics at the hadron level is directly related with the underlying quark-gluon substructure, via convolution of Green functions.<br/>9 pages, 4 figures; contribution to the proceedings of the XVIII International Conference on Hadron Spectroscopy and Structure, HADRON-2019. August 16-21, Guilin, China<br/>