In recent years light-cone quantization of quantum field theory has emerged as a promising
method for solving problems in the strong coupling regime. The approach has a number of …

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

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 …

We studied the electroproduction of the Δ (1232) resonance via the reaction p (e, e′ p) π 0
at four-momentum transfers Q 2= 2.8 and 4.0 GeV 2. This is the highest Q 2 for which …

Photoproduction of mesons is an excellent tool for the study of nucleon resonances.
Complementary to pion induced reactions, photoproduction on the free proton contributes to …

Recent experiments indicate that the behavior exhibited by the ratios E 1+/M 1+ and S 1+/M
1+ of the γ* N↔ Δ transition remains small and negative for Q 2≤ 4.0 GeV 2. It implies that …

The status of electromagnetic form-factors of nucleons and non-strange nucleon resonances
is rewiewed. Of special interest is the question of what regions in Q 2 correspond to the …

Recent developments in the theory of nuclear exchange current operators are reviewed. The
relation between the nuclear interaction and the associated electromagnetic and weak …

The differential cross section for the process p (e, e′ p) η has been measured at Q 2= 2.4
and 3.6 (GeV/c) 2 at center-of-mass energies encompassing the S 11 (1535) resonance …

After a brief review of the experimental findings of d∗(2380) and several theoretical efforts to
interpret its structure, the study of d∗(2380) on the quark–gluon degrees of freedom is …