Baryogenesis in a Flat Direction with Neither Baryon nor Lepton Charge

Takeshi Chiba, Fuminobu Takahashi, Masahide Yamaguchi

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


A novel mechanism of spontaneous baryogenesis was discussed. This mechanism requires a derivative coupling between a scalar field and a baryon current. Baryogenesis was discussed in the context of a flat direction with neither baryon nor lapton charge. The results show that baryogenesis is still possible even if a scalar field derivatively couples not to baryon current, but to other currents such as the lepton current and/or the Peccei-Quinee (PQ) current.

Original languageEnglish
Article number011301
Pages (from-to)113011-113014
Number of pages4
JournalPhysical Review Letters
Issue number1
Publication statusPublished - 2004 Jan 9


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