Heavy baryon--light vector meson couplings in QCD

TL;DR

This paper calculates the strong coupling constants between heavy baryons and light vector mesons using light cone QCD sum rules, providing a unified description for different transition classes and specific electric and magnetic coupling values.

Contribution

It introduces a unified approach to describe various heavy baryon transitions with light vector mesons using the most general interpolating currents in light cone QCD sum rules.

Findings

Unified invariant functions describe different transition classes.

Electric and magnetic coupling constants are quantitatively determined.

Transitions are categorized into sextet-sextet, sextet-antitriplet, and antitriplet-antitriplet.

Abstract

The strong coupling constants of heavy baryons with light vector mesons are calculated in the framework of the light cone QCD sum rules using the most general form of the interpolating currents for the heavy baryons. It is shown that the sextet--sextet, sextet--antitriplet and antitriplet--antitriplet transitions are described by one invariant function for each class of transitions. The values of the electric and magnetic coupling constants for these transitions are obtained.