Global Conservation Laws and Massless Particles
Received 12 October 1964DOI:https://doi.org/10.1103/PhysRevLett.13.585©1964 American Physical Society
Received 12 October 1964DOI:https://doi.org/10.1103/PhysRevLett.13.585©1964 American Physical Society
According to the Goldstone theorem, any manifestly covariant broken-symmetry theory must exhibit massless particles. However, it is known from previous work that such particles ...
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