Discovering QCD-Coupled Axion Dark Matter with Polarization Haloscopes
High Energy Physics - Phenomenology
2023-08-28 v2 High Energy Physics - Experiment
Nuclear Theory
Instrumentation and Detectors
Abstract
In the presence of QCD axion dark matter, atoms acquire time-dependent electric dipole moments. This effect gives rise to an oscillating current in a nuclear spin-polarized dielectric, which can resonantly excite an electromagnetic mode of a microwave cavity. We show that with existing technology such a "polarization haloscope" can explore orders of magnitude of new parameter space for QCD-coupled axions. If any cavity haloscope detects a signal from the axion-photon coupling, an upgraded polarization haloscope has the unique ability to test whether it arises from the QCD axion.
Cite
@article{arxiv.2209.12901,
title = {Discovering QCD-Coupled Axion Dark Matter with Polarization Haloscopes},
author = {Asher Berlin and Kevin Zhou},
journal= {arXiv preprint arXiv:2209.12901},
year = {2023}
}
Comments
11 pages, 2 figures. v2: discussion expanded, matches journal version