Electromagnetic transitions among octet and decuplet baryons in QCD

TL;DR

This paper investigates electromagnetic transition form factors among octet and decuplet baryons using light cone QCD sum rules, providing insights into their Q^2 dependence and comparing results with quark model predictions.

Contribution

It introduces a detailed QCD sum rule analysis of baryon transition form factors and compares these with covariant spectator quark model predictions.

Findings

Q^2 dependence of form factors characterized

Ratios of quadrupole to dipole form factors analyzed

Comparison with quark model predictions conducted

Abstract

The magnetic dipole G_M(Q^2), electric quadrupole G_E(Q^2), and Coulomb quadrupole G_C(Q^2) form factors, describing the spin-3/2 to spin-1/2 electromagnetic transitions, are investigated within the light cone QCD sum rules. The Q^2 dependence of these form factors, as well as ratios of electric quadrupole and Coulomb quadrupole form factors to the magnetic dipole form factors are studied. We also compare our results on the magnetic dipole form factor with the prediction of the covariant spectator quark model.