Search for dark matter in the form of hidden photons and axion-like particles in the XMASS detector

Abstract

Hidden photons and axion-like particles are candidates for cold dark matter if they were produced non-thermally in the early universe. We conducted a search for both of these bosons using 800 live-days of data from the XMASS detector with 327 kg of liquid xenon in the fiducial volume. No significant signal was observed, and thus we set constraints on the ���/�� parameter related to kinetic mixing of hidden photons and the coupling constant gAe of axion-like particles in the mass range from 40 to 120 keV/c2, resulting in ���/��<6��10?26 and gAe<4��10?13. These limits are the most stringent over this mass range derived from both direct and indirect searches to date. (c) 2018 The Author.