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

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.

Comments: Comment on arXiv:1009.5250 by Yang, Kim, Polyakov