Strong CP problem and axion dark matter with small instantons

Ryuichiro Kitano, Wen Yin

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The axion mass receives a large correction from small instantons if the QCD gets strongly coupled at high energies. We discuss the size of the new CP violating phases caused by the fact that the small instantons are sensitive to the UV physics. We also discuss the effects of the mass correction on the axion abundance of the Universe. Taking the small-instanton contributions into account, we propose a natural scenario of axion dark matter where the axion decay constant is as large as 1015-16 GeV. The scenario works in the high-scale inflation models.

本文言語English
論文番号78
ジャーナルJournal of High Energy Physics
2021
7
DOI
出版ステータスPublished - 2021 7月
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

フィンガープリント

「Strong CP problem and axion dark matter with small instantons」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル