Axionlike dark matter search using the storage ring EDM method

Abstract

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.

Statistical sensitivity estimates for oscillating electric dipole moment measurements in storage rings

“…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.…”

“…The estimates obtained from the analytic expressions are compared to numerical estimates from simulations in ref. [1]. A good agreement is found.…”

The quest for new physics with the Physics Beyond Colliders programme

“…1a) detectable through a time series analysis of the data or by scanning the beam's spin-rotation frequency in search of a resonance with an axion-like particle mass in the range from 10 -6 eV down to 10 -24 eV (refs. 33,34 ).…”

Dark matter from an even lighter QCD axion: trapped misalignment

“…11. The reach of other techniques to probe an oscillating nEDM based on storage rings [116] are also illustrated there, together with present constraints which exclude N 65. [76,99,116] astrophysical (green) and finite-density constraints (orange) [32,70,71].…”