MADMAX: A new Dark Matter Axion Search using a Dielectric Haloscope
Abstract
The axion is an intriguing dark matter candidate emerging from the Peccei-Quinn solution to the strong CP problem. Current experimental searches for axion dark matter focus on the axion mass range below 40 eV. However, if the Peccei-Quinn symmetry is restored after inflation the observed dark matter density points to an axion mass around 100 eV. A new project based on axion-photon conversion at the transition between different dielectric media is presented. By using dielectric discs, the emitted power could be enhanced by a factor of over that from a single mirror (flat dish antenna). Within a 10 T magnetic field, this could be enough to detect eV axions with HEMT linear amplifiers. The design for an experiment is proposed. Results from noise, transmissivity and reflectivity measurements obtained in a prototype setup are presented. The expected sensitivity is shown.
Keywords
Cite
@article{arxiv.1611.04549,
title = {MADMAX: A new Dark Matter Axion Search using a Dielectric Haloscope},
author = {Béla Majorovits and Javier Redondo},
journal= {arXiv preprint arXiv:1611.04549},
year = {2019}
}
Comments
Contributed to the 12th Patras Workshop on Axions, WIMPs and WISPs, Jeju Island, South Korea, June 20 to 26, 2016