Probing axion-photon coupling from the resonant conversion of QCD axion and ALP dark matter

Shu Yu Ho, Ken'Ichi Saikawa, Fuminobu Takahashi

研究成果: Conference contribution

抄録

We refine the adiabatic condition of the conversion between the QCD axion and axionlike particle (ALP) at level crossing. We then focus on a scenario where the ALP produced by the adiabatic conversion of the QCD axion explains the observed dark matter abundance. Interestingly, we find that the ALP decay constant can be much smaller than the ordinary case in which the ALP is produced by the realignment mechanism. As a consequence, the ALP-photon coupling is enhanced by a few orders of magnitude, which is advantageous for the future ALP and axion-search experiments using the ALP-photon coupling.

本文言語English
ホスト出版物のタイトルProceedings of the 14th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2018
編集者Todd Kozlowski
出版社Verlag Deutsches Elektronen-Synchrotron
ページ29-32
ページ数4
ISBN(電子版)9783945931226
DOI
出版ステータスPublished - 2018
外部発表はい
イベント14th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2018 - Hamburg, Germany
継続期間: 2018 6月 182018 6月 22

出版物シリーズ

名前Proceedings of the 14th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2018

Conference

Conference14th Patras Workshop on Axions, WIMPs and WISPs, PATRAS 2018
国/地域Germany
CityHamburg
Period18/6/1818/6/22

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子分子物理学および光学

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