Model of Weak and Electromagnetic Interactions

Abstract

We present here a model of weak and electromagnetic interactions of leptons and hadrons based on the spontaneously broken gauge symmetry O(3) × O(2). The advantages of the model are the following: (1) The universality of the $\beta$ and $\mu$ decays emerges naturally; (2) there appears only positively charged heavy leptons, and no neutral heavy leptons which might affect the muon ($g-2\mathrm{}$) factor adversely; (3) a neutral current shows up only as a short-range weak parity violation in electromagnetism, and nowhere else.