Experience of Using a Multi-Cathode Counter (MCC) in a Search for Hidden Photon CDM
Abstract
We report on a new technique of a Multi-Cathode Counter (MCC) developed to search for hidden photon (HP) cold dark matter (CDM) with a mass from 5 to 500 eV. The method suggested in the assumption that hidden photons of the mass greater than a work function of the metal, the cathode of the counter is fabricated induce emission of single electrons from a cathode. Three configurations of the same counter are used to measure the count rates R1, R2 and R3 of the single electron events during several weeks. As a measure of the effect from HP the difference R1-(R2-D3/D2xR3) has been used. Some preliminary results have been obtained on a first try to search for HP with a mass from 5 to 500 eV. The upper limit for mixing parameter X has been set on the level of 3.3x10-10 for hidden photon mass from 9 to 100 eV. In our plans is to refine the procedure of data treatment and to continue the measurements to collect more data.
Keywords
Cite
@article{arxiv.1512.04675,
title = {Experience of Using a Multi-Cathode Counter (MCC) in a Search for Hidden Photon CDM},
author = {A. V. Kopylov and I. V. Orekhov and V. V. Petukhov},
journal= {arXiv preprint arXiv:1512.04675},
year = {2015}
}
Comments
10 pages, 8 figures. arXiv admin note: substantial text overlap with arXiv:1509.03033