Structure of the nucleon’s low-lying excitations

@article{Chen2018StructureOT,
  title={Structure of the nucleon’s low-lying excitations},
  author={Chen Chen and Bruno El-Bennich and Craig D. Roberts and Sebastian M. Schmidt and Jorge Segovia and Shaolong Wan},
  journal={Physical Review D},
  year={2018},
  volume={97},
  pages={034016}
}
A continuum approach to the three valence-quark bound-state problem in quantum field theory is used to perform a comparative study of the four lightest $(I=1/2,{J}^{P}=1/{2}^{\ifmmode\pm\else\textpm\fi{}})$ baryon isospin doublets in order to elucidate their structural similarities and differences. Such analyses predict the presence of nonpointlike, electromagnetically active quark-quark (diquark) correlations within all baryons; and in these doublets, isoscalar-scalar, isovector-pseudovector… 

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