First observation and analysis of DANCE: Dark matter Axion search with riNg Cavity Experiment

31 Aug 2021, 17:10
50m
Talk in parallel session Dark Matter and its detection Discussion Panel Dark Matter 4

Speaker

Yuka Oshima (Department of Physics, University of Tokyo)

Description

Dark matter Axion search with riNg Cavity Experiment (DANCE) was proposed. To search for axion-like dark matter, we aim to detect the rotation and oscillation of optical linear polarization caused by axion-photon coupling with a bow-tie ring cavity. DANCE can improve the sensitivity to the axion-photon coupling constant for axion mass $< 10^{-10}$ eV by several orders of magnitude compared to the best upper limits at present. A prototype experiment DANCE Act-1 with a shorter cavity round-trip length of 1 m is ongoing to demonstrate the feasibility of our method and to investigate possible technical noises. We assembled the optics, evaluated the performance of the cavity. The first 12-day observation was successfully performed in May 2021, and the data analysis is underway. In this conference, we will report the principle of DANCE and the status of DANCE Act-1.

Reference to paper (DOI or arXiv) DOI: 10.1103/PhysRevLett.121.161301, arXiv:2105.06252

Primary author

Yuka Oshima (Department of Physics, University of Tokyo)

Co-authors

Mr. Hiroki Fujimoto (Department of Physics, University of Tokyo) Prof. Masaki Ando (Department of Physics, University of Tokyo) Dr. Tomohiro Fujita (Waseda Institute for Advanced Study, Waseda University) Mr. Jun'ya Kume (RESCEU, University of Tokyo) Dr. Yuta Michimura (Department of Physics, University of Tokyo) Dr. Soichiro Morisaki (University of Wisconsin-Milwaukee) Dr. Koji Nagano (ISAS/JAXA) Mr. Hiromasa Nakatsuka (ICRR, University of Tokyo) Dr. Atsushi Nishizawa (RESCEU, University of Tokyo) Dr. Ippei Obata (MPA) Mr. Taihei Watanabe (Department of Physics, University of Tokyo)

Presentation Materials

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