The Effect of Pion Exchange in a Relativistic Quark Model of Baryons

TL;DR

This paper investigates how incorporating pion exchange and self-energy corrections affects a relativistic quark model of baryons, finding the model remains stable with minimal parameter adjustments.

Contribution

It introduces pion exchange and self-energy corrections into the relativistic quark model, demonstrating the model's stability without major parameter changes.

Findings

Contributions to nucleon and Delta-baryon are small.

Model remains stable under pion exchange modifications.

No significant parameter adjustments needed.

Abstract

We examine the effect of adding pion exchange between quarks and pion self-energy corrections to the Los Alamos Relativistic Quark model with a short distance cutoff of the Bethe form. The contributions to the nucleon and the Delta-baryon are small. We conclude that the model is stable under this change in the sense that significant changes to the model parameters are not required.