Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

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 …

The composite nature of baryons manifests itself in the existence of a rich spectrum of
excited states, in particular in the important mass region 1–2 GeV for the light-flavoured …

The nucleon resonances are investigated within a dynamical coupled-channels model of π
N and γ N reactions up to the invariant mass W= 2 GeV. The meson-baryon (MB) channels …

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

We present results on the electroexcitation of the low mass resonances Δ (1232) P 33, N
(1440) P 11, N (1520) D 13, and N (1535) S 11 in a wide range of Q 2. The results were …

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 …

Elastic πN scattering and the world data of the family of reactions π− p→ ηn, K 0 Λ, K 0 Σ 0,
K+ Σ−, and π+ p→ K+ Σ+ are described simultaneously in an analytic, unitary, coupled …

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

The transition helicity amplitudes from the proton ground state to the P 11 (1440) and D 13
(1520) excited states (γ vp N* electrocouplings) were determined from the analysis of nine …