Goldstone and pseudo-Goldstone bosons in unified gauge-field models
- 15 December 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 10 (12), 4303-4306
- https://doi.org/10.1103/physrevd.10.4303
Abstract
We give a group-theoretical reason why in certain models the neutral pion remains massless to all orders in perturbation theory. This is an important constraint for the construction of realistic unified gauge-field models with pseudo-Goldstone bosons.Keywords
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