Mass Differences within Isotopic Multiplets in a SUSY Electro-weak Theory

Abstract

Based on the idea that electromagnetism is responsible for the mass differences within isotopic multiplets, and possibly also for the whole mass of the electron, a supersymmetric gauge theoretical model based on the group $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_Y$ is constructed. Under some reasonable assumptions to the SUSY particle spectrum, a correct sign for the mass difference within an isotopic multiplet is obtained. This might provide a possible scenario to understand the old puzzle of the proton-neutron mass difference.

Comments: 9 pages