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

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