We report on a search for hidden photon cold dark matter (HP CDM) using a novel technique with a dish antenna. We constructed two independent apparatus: one is aiming at the detection of the HP with a mass of ∼eV which employs optical instruments, and the other is for a mass of ∼5×10−5eV utilizing a commercially available parabolic antenna facing on a plane reflector. From the result of the measurements, we found no evidence for the existence of HP CDM and set upper limits on the photon-HP mixing parameter χ.
Cite
@article{arxiv.1509.00785,
title = {Hidden photon CDM search at Tokyo},
author = {Jun'ya Suzuki and Yoshizumi Inoue and Tomoki Horie and Makoto Minowa},
journal= {arXiv preprint arXiv:1509.00785},
year = {2015}
}
Comments
Contributed to the 11th Patras Workshop on Axions, WIMPs and WISPs, Zaragoza, June 22 to 26, 2015