Effective Hadronic Lagrangians Based on QCD: Potential Models and Skyrmions

TL;DR

This paper explores how an approximate hadronic symmetry derived from QCD underpins potential models and Skyrmion effective Lagrangians, leading to improved predictions through various chiral group realizations.

Contribution

It demonstrates the connection between QCD-derived symmetries and effective hadronic models, including supersymmetric extensions and Skyrmion formulations.

Findings

Hadronic symmetry from QCD justifies SU(6) classification.

Supersymmetry extends to diquark-antiquark systems.

Skyrme model predictions are enhanced with different chiral realizations.

Abstract

An approximate hadronic symmetry based on spin and flavor independence and broken by spin and mass dependent terms is shown to follow from QCD. This symmetry justifies the SU(6) classification scheme, but is more general in allowing its supersymmetric extension based on a diquark-antiquark symmetry. It will be shown that the same supersymmetry is also implied in the skyrmion type effective Lagrangian which could be extracted from QCD. Predictions of the Skyrme model is improved by using different realizations of the chiral group.