About 120 baryons and baryon resonances are known, from the abundant nucleon with u
and d light-quark constituents up to the Ξ b−=(bsd), which contains one quark of each …

We review recent progress in the investigation of the electroexcitation of nucleon
resonances, both in experiment and in theory. We describe current experimental facilities …

Studies of the structure of excited baryons are key factors to the N* program at Jefferson Lab
(JLab). Within the first year of data taking with the Hall B CLAS12 detector following the 12 …

Understanding the strong interaction dynamics that govern the emergence of hadron mass
(EHM) represents a challenging open problem in the Standard Model. In this paper we …

Recent experimental and theoretical advancements have led to significant progress in our
understanding of the electromagnetic structure of nucleons (N), nucleon excitations (N∗) …

A review of the present understanding of η′ and η meson physics and these mesons as a
probe of gluon dynamics in low-energy QCD is presented. Recent highlights include the …

Studies of the spectrum of hadrons and their structure in experiments with electromagnetic
probes offer unique insight into many facets of the strong interaction in the regime of large …

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, JP= 1/2±) baryon …

We utilize a light-front relativistic quark model (LF RQM) to predict the 3 q core contribution
to the electroexcitation amplitudes for Δ (1232) P 33, N (1440) P 11, N (1520) D 13, and N …

A continuum approach to the three-valence-quark bound-state problem in quantum field
theory, employing parametrizations of the necessary kernel elements, is used to compute …