A Search for Hidden Photon CDM in a Multi-Cathode Counter (MCC) data

TL;DR

This study conducted a direct search for hidden photon cold dark matter within 5 to 500 eV using a Multi-Cathode Counter over 60 days, setting new upper limits on photon-HP mixing without detecting evidence.

Contribution

First direct measurement in this mass range for hidden photon CDM using MCC with single electron event signature.

Findings

No evidence for hidden photon CDM was found.

Set upper limits on photon-HP mixing parameter $7$.

First direct measurement in this mass range using MCC.

Abstract

A search for hidden photon cold dark matter in a mass range from 5 to 500 eV in data collected during 60 days in November and December, 2015 by a Multi-Cathode Counter (MCC) is reported. From the analyses of this data we found no evidence for the existence of HP CDM and set an upper limit on the photon-HP mixing parameter $\chi$. This is the first result obtained by direct measurements in this mass range for hidden photon CDM using a single electron event in MCC as a signature.