Axions are one of the well-motivated candidates for dark matter, originally proposed to solve the strong C P problem in particle physics. Dark matter Axion search with riNg Cavity Experiment (DANCE) is a new experimental project to broadly search for axion dark matter in the mass range of 10-17 eV <ma<10-11 eV . We aim to detect the rotational oscillation of linearly polarized light caused by the axion-photon coupling with a bow-tie cavity. The first results of the prototype experiment, DANCE Act-1, are reported from a 24-hour observation. We found no evidence for axions and set 95% confidence level upper limit on the axion-photon coupling ga γ γ≲8 ×10-4 GeV-1 in 10-14 eV <ma<10-13 eV . Although the bound did not exceed the current best limits, this optical cavity experiment is the first demonstration of polarization-based axion dark matter search without any external magnetic field.
Physical Review D
- Pub Date:
- October 2023
- High Energy Physics - Experiment;
- Astrophysics - Instrumentation and Methods for Astrophysics;
- Physics - Instrumentation and Detectors
- 9 pages, 8 figures