Erasure and regeneration of the primordial baryon asymmetry by sphalerons

James M. Cline, Kimmo Kainulainen, Keith A. Olive

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


We show that a cosmological baryon asymmetry generated at the grand unified theory scale, which would be destroyed at lower temperatures by sphalerons and possible new B- or L-violating effects, can naturally be preserved by an asymmetry in the number of right-handed electrons. This results in a significant softening of previously derived baryogenesis-based constraints on the strength of exotic B- or L-violating interactions.

Original languageEnglish (US)
Pages (from-to)2372-2375
Number of pages4
JournalPhysical review letters
Issue number15
StatePublished - 1993

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