Abstract
Some proofs are presented of Goldstone's conjecture, that if there is continuous symmetry transformation under which the Lagrangian is invariant, then either the vacuum state is also invariant under the transformation, or there must exist spinless particles of zero mass.
- Received 16 March 1962
DOI:https://doi.org/10.1103/PhysRev.127.965
©1962 American Physical Society
