First results from a hidden photon dark matter search in the meV sector using a plane-parabolic mirror system

TL;DR

This paper presents initial experimental results from a novel dish antenna setup using a plane-parabolic mirror system to search for hidden photon dark matter in the meV mass range, setting new upper limits on kinetic mixing.

Contribution

First experimental search for hidden photon dark matter in the meV range using a plane-parabolic mirror system, establishing initial upper limits on kinetic mixing parameter.

Findings

Upper limit on photon-HP kinetic mixing: χ ≲ 10^{-8}

Mass range explored: 0.67-0.92 meV

Used conventional mm-wave technology with room-temperature receiver

Abstract

We report on the first results from a new dish antenna search for hidden photon dark matter (HPDM) in the meV mass region. A double mirror system composed of a plane and a parabolic mirror is designed to convert HPDMs into photons focused on a receiver. In this phase 1 experiment we obtain an upper limit on the photon-HP kinetic mixing $\chi \lesssim 10^{-8}$ for the mass range of $0.67-0.92\,{\rm meV}$ using conventional mm-wave technology with a room-temperature receiver and a small-sized mirror system.