We construct three-triplet realizations of the gauge models for weak and electromagnetic interactions based on the groups O(3) and SU(2)⊗U(1). Within the framework of these models we find that the logarithmically divergent contributions to "electromagnetic" mass differences arising from the exchange of the gauge particles may be made to cancel.

• Received 9 November 1972

DOI:https://doi.org/10.1103/PhysRevD.7.3812