First Axion Dark Matter Search with Toroidal Geometry

TL;DR

This paper presents the first experimental search for axion dark matter using a toroidal cavity, setting new exclusion limits on axion-photon coupling within a specific mass range and discussing future prospects.

Contribution

It introduces a novel toroidal geometry approach for axion dark matter detection, expanding the experimental techniques in the field.

Findings

Set exclusion limits on axion-photon coupling from 24.7 to 29.1 μeV

Demonstrated feasibility of toroidal geometry for axion searches

Provided outlook for larger-scale toroidal experiments

Abstract

We report the first axion dark matter search with toroidal geometry. Exclusion limits of the axion-photon coupling $g_{a\gamma\gamma}$ over the axion mass range from 24.7 to 29.1 $\mu$eV at the 95\% confidence level are set through this pioneering search. Prospects for axion dark matter searches with larger scale toroidal geometry are also given.