Electromagnetic transitions of the singly charmed baryons with spin 3/2

TL;DR

This paper studies electromagnetic transitions of singly charmed baryons with spin 3/2 using a chiral quark-soliton model, analyzing quark contributions, symmetry breaking effects, and decay widths.

Contribution

It provides a detailed analysis of electromagnetic form factors and decay widths of charmed baryons within the chiral quark-soliton framework, including sea-quark effects and symmetry breaking impacts.

Findings

Sea-quark quadrupole form factors dominate at low Q^2.

Flavor SU(3) symmetry breaking effects are generally small.

Calculated decay widths are compared with other theoretical results.

Abstract

We investigate the electromagnetic transitions of the singly charmed baryons with spin 3/2, based on a pion mean-field approach, also known as the chiral quark-soliton model, taking into account the rotational $1/N_c$ corrections and the effects of flavor SU(3) symmetry breaking. We examine the valence- and sea-quark contributions to the electromagnetic transition form factors and find that the quadrupole form factors of the sea-quark contributions dominate over those of the valence-quark ones in the smaller $Q^2$ region, whereas the sea quarks only provide marginal contributions to the magnetic dipole transition form factors of the baryon sextet with spin 3/2. The effects of the flavor SU(3) symmetry breaking are in general very small except for the forbidden transition $\Xi_c^0\gamma\to \Xi_c^{*0}$ by $U$-spin symmetry. We also discuss the widths of the radiative decays for the baryon sextet with spin 3/2, comparing the present results with those from other works.