Electroweak baryogenesis induced by a scalar field

Ram Brustein, David H. Oaknin

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


A cosmological pseudoscalar field coupled to hypercharge topological number density can exponentially amplify hyperelectric and hypermagnetic fields while coherently rolling or oscillating, leading to the formation of a time-dependent condensate of topological number density. The topological condensate can be converted, under certain conditions, into baryons in sufficient quantity to explain the observed baryon asymmetry in the Universe. The amplified hypermagnetic field can perhaps sufficiently strengthen the electroweak phase transition, and by doing so save any preexisting baryon number asymmetry from extinction.

Original languageEnglish
Pages (from-to)2628-2631
Number of pages4
JournalPhysical Review Letters
Issue number13
StatePublished - 1 Jan 1999

ASJC Scopus subject areas

  • General Physics and Astronomy


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