Baryogenesis below the electroweak scale

Lawrence M. Krauss, Mark Trodden

Research output: Contribution to journalArticlepeer-review

99 Scopus citations


We propose a new alternative for baryogenesis which resolves a number of the problems associated with grand unified theory (GUT) and electroweak scenarios, and which may allow baryogenesis even in modest extensions of the standard model. If the Universe never reheats above the electroweak scale following inflation, GUT baryon production does not occur, and at the same time thermal sphalerons, gravitinos, and monopoles are not produced in abundance. Nevertheless, nonthermal production of sphaleron configurations via preheating could generate the observed baryon asymmetry of the Universe.

Original languageEnglish (US)
Pages (from-to)1502-1505
Number of pages4
JournalPhysical Review Letters
Issue number8
StatePublished - Jan 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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