Radiative $\Omega_{Q}^{*}\rightarrow\Omega_{Q}\gamma$ and $\Xi_{Q}^{*}\rightarrow\Xi^{\prime}_{Q}\gamma$ transitions in light cone QCD

TL;DR

This paper calculates the magnetic dipole and electric quadrupole moments for specific heavy baryon radiative transitions using light cone QCD sum rules, finding large magnetic moments and negligible quadrupole moments.

Contribution

It provides the first detailed QCD sum rule calculations of these transition moments for heavy baryons, comparing results with the vector dominance model.

Findings

Quadrupole moments are negligibly small.

Magnetic dipole moments are significantly large.

Results are compared with vector dominance model predictions.

Abstract

We calculate the magnetic dipole and electric quadrupole moments associated with the radiative $\Omega_{Q}^{*}\rightarrow\Omega_{Q}\gamma$ and $\Xi_{Q}^{*}\rightarrow\Xi^{\prime}_{Q}\gamma$ transitions with $Q=b$ or $c$ in the framework of light cone QCD sum rules. It is found that the corresponding quadrupole moments are negligibly small while the magnetic dipole moments are considerably large. A comparison of the results on the considered multipole moments as well as corresponding decay widths with the predictions of the vector dominance model is performed.