Stronger QCD in the early Universe to suppress axion isocurvature perturbations

K. S. Jeong, F. Takahashi

研究成果: Conference contribution

抄録

A stronger QCD in the early Universe renders the axion heavy, and thus can suppress the isocurvature perturbations of axion dark matter, relaxing the constraint on the inflation scale. Supersymmetry provides a natural framework for this because there is a flat direction involving Higgs fields. Stabilized at a large value during inflation, the Higgs flat direction leads to that the QCD interaction becomes strong at a high energy scale, making high scale inflation scenarios compatible with axion dark matter.

本文言語English
ホスト出版物のタイトルProceedings of the 9th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2013
編集者Oberlack Uwe, Sissol Pierre
出版社Verlag Deutsches Elektronen-Synchrotron
ページ153-158
ページ数6
ISBN(電子版)9783935702836
DOI
出版ステータスPublished - 2020
イベント9th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2013 - Mainz, Germany
継続期間: 2013 6 242013 6 28

出版物シリーズ

名前Proceedings of the 9th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2013

Conference

Conference9th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2013
CountryGermany
CityMainz
Period13/6/2413/6/28

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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