Does the Electromagnetic Current Have anI=2Component?

Abstract

The possibility that the electromagnetic current may have a part transforming like $I=2\mathrm{}$, with $C=-1\mathrm{}$, in addition to the usual $I=0\mathrm{}$ and $I=1\mathrm{}$ parts is considered. It is argued that there is no evidence at present to exclude such a hypothesis. Some consequences and tests of the hypothesis are discussed.