Radiative $$\Omega _{Q}^{*}\rightarrow \Omega _{Q}\gamma $$ Ω Q ∗ → Ω Q γ and $$\Xi _{Q}^{*}\rightarrow \Xi ^{\prime }_{Q}\gamma $$ Ξ Q ∗ → Ξ Q ′ γ transitions in light cone QCD

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 of the considered multipole moments as well as corresponding decay widths with the predictions of the vector dominance model is performed.