On the suppression of monopole production in the very early universe

F. Alexander Bais, Serge Rudaz

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


We investigate the effects of thermal fluctuations near the phase transition corresponding to the breakdown of a grand unified gauge group G to G′ × U(1) in the very early Universe, especially as regards the production of superheavy monopoles. Using SU(5) as a generic example of a grand unified theory, we find that this will be strongly suppressed for a reasonable range of parameters appearing in the Higgs potential. Allowing for a dynamical Higgs mechanism, leading to a considerable ratio of Higgs particle to leptoquark boson masses, the number of produced monopoles will be negligible.

Original languageEnglish (US)
Pages (from-to)507-518
Number of pages12
JournalNuclear Physics, Section B
Issue number3
StatePublished - Dec 15 1980

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