Spontaneous leptogenesis in Higgs inflation

Sung Mook Lee, Kin ya Oda, Seong Chan Park

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We propose a scenario of spontaneous leptogenesis in Higgs inflation with help from two additional operators: the Weinberg operator (Dim 5) and the derivative coupling of the Higgs field and the current of lepton number (Dim 6). The former is responsible for lepton number violation and the latter induces chemical potential for lepton number. The period of rapidly changing Higgs field, naturally realized in Higgs inflation during the reheating, allows large enhancement in the produced asymmetry in lepton number, which is eventually converted into baryon asymmetry of the universe. This scenario is compatible with high reheating temperature of Higgs inflation model.

Original languageEnglish
Article number83
JournalJournal of High Energy Physics
Issue number3
Publication statusPublished - 2021 Mar

Bibliographical note

Publisher Copyright:
© 2021, The Author(s).

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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