Hadron structures from the non-topological soliton

Abstract

We review a series of recent studies on the static properties of SU(3) heavy baryons, based on a non-topological soliton approach, the chiral quark-soliton model. A singly heavy baryon can be thought of as a system composed of $N_{c}-1$ valence quarks bound by the pion mean fields and a heavy quark in the limit of an infinitely heavy quark mass. Using all model parameters fixed in the light-baryon sector, the color factor $N_{c}$ is replaced with $N_{c}-1$ to calculate the physical observables of singly heavy baryons. By comparing our results to the experimental data, we show that this pion mean-field approach describes very successfully the isospin mass differences and strong decay widths of the lowest-lying singly heavy baryons, charmed and beauty baryons.