Analysis of the vertexes $\Xi_Q^*\Xi'_Q V$, $\Sigma_Q^*\Sigma_Q V$ and radiative decays $\Xi_Q^*\to \Xi'_Q \gamma$, $\Sigma_Q^*\to \Sigma_Q \gamma$

TL;DR

This paper investigates specific baryon-vector meson interactions and calculates related radiative decay processes using light-cone QCD sum rules and vector meson dominance assumptions.

Contribution

It introduces a detailed analysis of vertexes involving heavy baryons and vector mesons, and computes radiative decay widths with a novel application of light-cone QCD sum rules.

Findings

Calculated the vertex functions for $ ext{Xi}_Q^* ext{Xi}_Q' V$ and $ ext{Sigma}_Q^* ext{Sigma}_Q V$.

Estimated the radiative decay widths for $ ext{Xi}_Q^* o ext{Xi}_Q' ext{gamma}$ and $ ext{Sigma}_Q^* o ext{Sigma}_Q ext{gamma}$.

Applied vector meson dominance to relate meson interactions to photon emissions.

Abstract

In this article, we study the vertexes $\Xi_Q^*\Xi'_Q V$ and $\Sigma_Q^* \Sigma_Q V$ with the light-cone QCD sum rules, then assume the vector meson dominance of the intermediate $\phi(1020)$, $\rho(770)$ and $\omega(782)$, and calculate the radiative decays $\Xi_Q^*\to \Xi'_Q \gamma$ and $\Sigma_Q^*\to \Sigma_Q \gamma$.