Pion--baryon coupling constants in light cone QCD sum rules

TL;DR

This paper calculates specific pion-baryon coupling constants using light cone QCD sum rules and compares the results with SU(3) symmetry predictions, providing insights into hadronic interactions.

Contribution

The study introduces a calculation of pion-baryon coupling constants within the light cone QCD sum rules framework, offering a comparison with SU(3) symmetry predictions.

Findings

Calculated coupling constants for pi Sigma Lambda and pi Sigma Sigma.

Results show agreement or deviation from SU(3) symmetry predictions.

Provides numerical values for the coupling constants.

Abstract

We calculate the "pi Sigma Lambda" and "pi Sigma Sigma" coupling constants in light cone QCD sum rules for the structure "sigma_{alpha beta} gamma_5 p^alpha q^beta". A comparison of our results on these coupling constants with prediction of the SU(3) symmetry is presented.