English

More about the light baryon spectrum

High Energy Physics - Phenomenology 2017-03-08 v1 Nuclear Theory

Abstract

We discuss the light baryon spectrum obtained from a recent quark-diquark calculation, implementing non-pointlike diquarks that are self-consistently calculated from their Bethe-Salpeter equations. We examine the orbital angular momentum content in the baryons' rest frame and highlight the fact that baryons carry all possible values of L compatible with their spin, without the restriction P=(-1)^L which is only valid nonrelativistically. We furthermore investigate the meaning of complex conjugate eigenvalues of Bethe-Salpeter equations, their possible connection with 'anomalous' states, and we propose a method to eliminate them from the spectrum.

Keywords

Cite

@article{arxiv.1611.10118,
  title  = {More about the light baryon spectrum},
  author = {Gernot Eichmann},
  journal= {arXiv preprint arXiv:1611.10118},
  year   = {2017}
}

Comments

9 pages, 4 figures. Presented at Light Cone 2016, September 5-8 2015, IST, Universidade de Lisboa, Lisbon, Portugal

R2 v1 2026-06-22T17:09:15.770Z