The S-wave Σ c D¯ and Λ c D¯ states with isospin I= 1/2 and spin S= 1/2 are dynamically
investigated within the framework of a chiral constituent quark model by solving a resonating …

Quark-chiral field interaction is studied in terms of the linear realization of the Lagrangian
which is invariant under the SU (3) L× SU (3) R infinitesimal transformation and then is …

A modified quark-quark interaction is applied to study the nucleon-nucleon interaction. The
quark potential is suggested by instanton models and includes pion (pi) and sigma (sigma) …

We calculate the electromagnetic moments and radii of the Δ (1232) in the nonrelativistic
quark model, including two-body exchange currents. We show that two-body exchange …

Composite nature of a particle can be probed by electromagnetic interactions and
information about their structure is embedded in form factors. Most of the experimental and …

We address the question of the intrinsic quadrupole moment Q 0 of the nucleon in various
models. All models give a positive intrinsic quadrupole moment for the proton. This …

The chiral SU (3) quark model is extended to include coupling between vector chiral field
and quarks. By using this model, the phase shifts of NN scattering for different partial waves …

The possible candidates of S-wave dibaryons with various strange numbers are studied
under the chiral SU (3) quark model. It is shown that there are three types of baryon–baryon …

The quark-cluster model with coupling constants constraint by chiral symmetry is extended
to include strange quarks. In this model, besides the confinement and one-gluon exchange …

We have performed a calculation of the helicity amplitudes for the electromagnetic excitation
of nucleon resonances based on a three-body force model for baryon structure. All …