Comment on [arXiv:1009.5250] "Electromagnetic mass differences of SU(3) baryons within a chiral soliton model"

TL;DR

This paper critiques a recent publication on electromagnetic mass differences of baryons, highlighting missing colormagnetic terms and providing corrected formulae based on a more comprehensive, model-independent approach.

Contribution

It identifies errors in previous work and offers accurate, general mass formulae for baryons that include colormagnetic effects.

Findings

Original formulae omitted colormagnetic terms

Corrected formulae align with established model-independent results

Clarifies the proper derivation of baryon mass differences

Abstract

In a recent letter, several electromagnetic mass difference formulae for baryons were presented. However, because the derivation did not include important colormagnetic terms, the mass relations do not correctly give isospin mass splittings for the baryons. Correct mass formulae were published some time ago in a model independent approach that was more general and correct than the approach in this letter. In this Comment, the errors in the letter are pointed out and some correct formulae presented.