Experimental Search for Hidden Photon CDM in the eV mass range with a Dish Antenna

TL;DR

This paper reports an experimental search for hidden photon cold dark matter in the eV mass range using a dish antenna, setting new upper limits on the photon-hidden photon mixing parameter.

Contribution

It introduces a novel dish antenna technique for detecting hidden photon dark matter and provides the first experimental constraints in the eV mass range.

Findings

No evidence for hidden photon dark matter was found.

Set an upper limit on the photon-hidden photon mixing parameter of ~6×10^{-12}.

Constrained the hidden photon mass to around 3.1 eV.

Abstract

A search for hidden photon cold dark matter (HP CDM) using a new technique with a dish antenna is reported. From the result of the measurement, we found no evidence for the existence of HP CDM and set an upper limit on the photon-HP mixing parameter $\chi$ of $\sim 6\times 10^{-12}$ for the hidden photon mass $m_\gamma = 3.1 \pm 1.2$ eV.