2020/06/17 by Ryan Janish, Harikrishnan Ramani · 29 citations
Physics and Astronomy · #Anomalous magnetic dipole moment #Anomaly (physics) #Atomic and Subatomic Physics Research #Condensed matter physics #Dark Matter and Cosmic Phenomena #Dark matter #Dipole #Electric dipole moment #Electron #Meson #Muon #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #astro-ph.CO #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.102.115018
published in Physical review. D/Physical review. D. 102(11) (American Physical Society) · 33 pages, 9 figures
arxiv created 2020/06/17 · openalex publication_date 2020/12/10 · arxiv updated 2021/01/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The detection of ultralight dark matter through interactions with nucleons, electrons, and photons has been explored in depth. In this work we propose to use precision muon experiments, specifically muon g-2 and electric dipole moment measurements, to detect ultralight dark matter (DM) that couples predominantly to muons. We set direct, terrestrial limits on DM-muon interactions using existing g-2 data, and show that a time-resolved reanalysis of ongoing and upcoming precession experiments will be sensitive to dark matter signals. Intriguingly, we also find that the current muon g-2 anomaly can be explained by a spin torque applied to muons from a pseudoscalar dark matter background that induces an oscillating electric dipole moment for the muon. This explanation may be verified by a time-resolved reanalysis.