Nonrestoration of spontaneously broken P, CP and PQ at high temperature
arXiv:hep-ph/9601376 · doi:10.1103/PhysRevD.54.7857
Abstract
The possibility of P and CP violation at high temperature in models where these symmetries are spontaneously broken is investigated. It is found that in minimal models that include singlet fields, high T nonrestoration is possible for a wide range of parameters of the theory, in particular in models of CP violation with a CP-odd Higgs field. The same holds true for the invisible axion version of the Peccei-Quinn mechanism. This can provide both a way out for the domain wall problem in these theories and the CP violation required for baryogenesis. In the case of spontaneous P violation it turns out that high T nonrestoration requires going beyond the minimal model.The results are shown to hold true when next-to-leading order effects are considered.
22 pages, 3 figures, uses psfig. Replaced version with the Latex source
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Cited by in corpus (38)
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