Baryogenesis in a Flat Direction with Neither Baryon nor Lepton Charge

Takeshi Chiba, Fuminobu Takahashi, Masahide Yamaguchi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We present a new mechanism of spontaneous baryogenesis. Usually such mechanisms require a derivative coupling between a scalar field and baryon current. In our model, the scalar field instead derivatively couples to a current associated with some global symmetry [Formula presented]. In this case, baryogenesis is still possible provided that an interaction exists, which violates the baryon and [Formula presented] symmetries simultaneously. As a concrete example, we discuss baryogenesis in a flat direction with neither baryon nor lepton charge.

本文言語English
ページ(範囲)4
ページ数1
ジャーナルPhysical review letters
92
1
DOI
出版ステータスPublished - 2004
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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