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

Yuka Oshima,Soichiro Morisaki,Yuta Michimura,Ippei Obata,Tomohiro Fujita,Jun’Ya Kume,Hiromasa Nakatsuka,Masaki Ando,Koji Nagano,Taihei Watanabe,Hiroki Fujimoto,Atsushi Nishizawa

doi:10.1088/1742-6596/2156/1/012042

Yuka Oshima, Soichiro Morisaki + Show 10 more

Open Access

https://doi.org/10.1088/1742-6596/2156/1/012042

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Abstract

Dark matter Axion search with riNg Cavity Experiment (DANCE) was proposed to search for axion dark matter [Phys. Rev. Lett. 121, 161301 (2018)]. We aim to detect the rotation and oscillation of optical linear polarization caused by axion-photon coupling with a bow-tie cavity. DANCE can improve the sensitivity to axion-photon coupling constant gaγ for axion mass ma < 10−10 eV by several orders of magnitude compared to the best upper limits at present. A prototype experiment DANCE Act-1 is ongoing to demonstrate the feasibility of the method and to investigate technical noises. The optics was assembled and the performance of the cavity was evaluated. The first 12-day observation was successfully performed in May 2021. We reached at 10 Hz in the one-sided amplitude spectral density of the rotation angle of linear polarization.

Highlights

DANCE can improve the sensitivity to axion-photon coupling constant gaγ for axion mass ma < 10−10 eV by several orders of magnitude compared to the best upper limits at present
We review the Dark matter Axion search with riNg Cavity Experiment (DANCE) proposal, and report the status of the prototype experiment, DANCE Act-1
A new table-top experiment DANCE was proposed to search for axion dark matter

Summary

Introduction

Various experiments and observations have been performed to search for dark matter, but dark matter has yet to be detected. Axions may weakly interact with photons [5, 6], and this axion-photon coupling provides a good chance to detect axions through direct search experiments by using well-developed photonics technology. Several novel methods were proposed to observe axion-photon coupling using carefully designed optical cavities [7–12]. These laser interferometric searches can be done without a strong magnetic field, and have good sensitivity in the low mass region ma < 10−10 eV. We review the Dark matter Axion search with riNg Cavity Experiment (DANCE) proposal, and report the status of the prototype experiment, DANCE Act-1

Designed sensitivity of DANCE

Performance evaluation of the bow-tie cavity

First observation and sensitivity The first data was taken for 12 days in

Conclusion