Vector meson dominance and radiative decays of heavy spin-3/2 baryons to heavy spin--1/2 baryons

TL;DR

This paper calculates radiative decay widths of heavy spin-3/2 baryons to spin-1/2 baryons using light cone QCD sum rules and vector meson dominance, comparing different theoretical approaches.

Contribution

It introduces a method combining light cone QCD sum rules and vector meson dominance to evaluate radiative decay widths of heavy baryons.

Findings

Calculated decay widths using the combined approach.

Comparison with direct decay width predictions.

Insights into the validity of vector meson dominance in heavy baryon decays.

Abstract

Using the calculated values of the strong coupling constants of the heavy sextet spin-3/2 baryons to sextet and antitriplet heavy spin-1/2 baryons with light mesons within the light cone QCD sum rules method, and vector meson dominance assumption, the radiative decay widths are calculated. These widths are compared with the "direct" radiative decay widths predicted in the framework of the light cone QCD sum rules.