Direct baryogenesis in the broken phase

Takehiko Asaka, Hiroyuki Ishida, Wen Yin

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We show a new mechanism for baryogenesis where the reheating temperature can be smaller than the electroweak scale. The baryon number symmetry is violated by a dimension nine operator which conserves a baryon parity. A high energy quark from the decay of a heavy particle, e.g. inflaton, modulus or gravitino, undergoes flavor oscillation, and is thermalized due to the scatterings with the ambient thermal plasma. We point out that the baryon asymmetry of our universe can be generated due to the scatterings via the baryon number violating operator. Our scenario can be tested in neutron-antineutron oscillation experiments as well as other terrestrial experiments.

本文言語English
論文番号174
ジャーナルJournal of High Energy Physics
2020
7
DOI
出版ステータスPublished - 2020 7 1
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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