We propose using the storage ring electric dipole moment (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 ≤ f a ≤ 10 30 GeV, the breakdown scale of the global symmetry generating the axion or axionlike particles.

In this paper analytical formulas are derived to describe the spin motion in magnetic and electric fields in the presence of an axion field causing an oscillating electric dipole moment (EDM). These equations are used to estimate statistical sensitivities for axion searches at storage rings.The estimates obtained from the analytic expressions are compared to numerical estimates from simulations in ref. [1]. A good agreement is found.

No abstract