Search for Dark Matter in the Form of Hidden Photons and Axion-Like Particles in the XMASS Detector

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 alpha'/alpha parameter related to kinetic mixing of hidden photons and the coupling constant g(Ae) of axion-like particles in the mass range from 40 to 120 keV/c(2), resulting in alpha'/alpha < 6 x 10(-26) and g(Ae) < 4 x 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. Published by Elsevier B.V.