Abstract
This Letter reports on the first results from the Taiwan Axion Search Experiment with a Haloscope, a search for axions using a microwave cavity at frequencies between 4.707 50 and 4.798 15 GHz. Apart from the nonaxion signals, no candidates with a significance of more than 3.355 were found. The experiment excludes models with the axion-two-photon coupling , a factor of eleven above the benchmark Kim-Shifman-Vainshtein-Zakharov model, in the mass range . It is also the first time that a haloscope experiment places constraints on in the mass region of , reaching a sensitivity 3 orders of magnitude better than the limits obtained by nonhaloscope experiments.
- Received 11 May 2022
- Revised 14 July 2022
- Accepted 14 July 2022
DOI:https://doi.org/10.1103/PhysRevLett.129.111802
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society