Abstract
We show that a gauge group is naturally enlarged to include certain discrete internal symmetries such as charge conjugation. The full gauge group is then disconnected. If space-time is not simply connected, then a mechanism for the global violation of charge conservation results. Examples are given in space dimensions one through three. Gauge theories based on non-Abelian simple compact Lie algebras are also discussed.
- Received 27 February 1978
DOI:https://doi.org/10.1103/PhysRevD.17.3196
©1978 American Physical Society