Axion dark matter search using the storage ring EDM method

TL;DR

This paper proposes a novel storage ring EDM method to detect axion dark matter by resonantly enhancing sensitivity to axion-induced nucleon EDM oscillations across a wide frequency range.

Contribution

It introduces a new experimental approach combining B and E-fields to search for axion-induced EDM oscillations with high sensitivity over a broad frequency spectrum.

Findings

Potential to scan axion frequencies from 10^{-9} Hz to 100 MHz.

Sensitivity extends to axion decay constants between 10^{13} and 10^{30} GeV.

Method could significantly improve detection prospects for axion-like particles.

Abstract

We propose using the storage ring EDM method to search for the axion dark matter induced EDM oscillation in nucleons. The method uses a combination of B and E-fields to produce a resonance between the $g-2$ spin precession frequency and the background axion field oscillation to greatly enhance sensitivity to it. An axion frequency range from $10^{-9}$ Hz to 100 MHz can in principle be scanned with high sensitivity, corresponding to an $f_a$ range of $10^{13} $ GeV $\leq f_a \leq 10^{30}$ GeV, the breakdown scale of the global symmetry generating the axion or axion like particles (ALPs).