Strong Coupling Constants of Decuplet Baryons with Vector Mesons

TL;DR

This paper calculates the strong coupling constants between decuplet baryons and light vector mesons using light cone QCD sum rules, highlighting symmetry relations and symmetry breaking effects.

Contribution

It introduces a method to express all relevant coupling constants with a single invariant function, incorporating $SU(3)_f$ symmetry breaking effects.

Findings

Coupling constants are related through symmetry arguments.

$SU(3)_f$ symmetry violations are estimated within the approach.

The method simplifies calculations of baryon-meson interactions.

Abstract

We provide a comprehensive study of strong coupling constants of decuplet baryons with light nonet vector mesons in the framework of light cone QCD sum rules. Using the symmetry arguments, we argue that all coupling constants entering the calculations can be expressed in terms of only one invariant function even if the $SU(3)_f$ symmetry breaking effects are taken into account. We estimate the order of $SU(3)_f$ symmetry violations, which are automatically considered by the employed approach.