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Order of phase transitions in a field theory
Phys. Rev. D 28, 409 – Published 15 July, 1983
DOI: https://doi.org/10.1103/PhysRevD.28.409
Abstract
The relation between the gauge or global nature of a symmetry being broken and the order of the associated phase transition is clarified. First-order phase transitions in gauge theories are related to the asymptotic freedom of the interaction in six dimensions. Spontaneous violation of lepton number in the standard electroweak theory provides a nontrivial illustration of our results.
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