Search for bosonic superweakly interacting massive dark matter particles with the XMASS-I detector

Abstract

Bosonic superweakly interacting massive particles (super-WIMPs) are a candidate for warm dark matter. With the absorption of such a boson by a xenon atom these dark matter candidates would deposit an energy equivalent to their rest mass in the detector. This is the first direct detection experiment exploring the vector super-WIMPs in the mass range between 40 and 120 keV. Using 165.9 days of data no significant excess above background was observed in the fiducial mass of 41 kg. The present limit for the vector super-WIMPs excludes the possibility that such particles constitute all of dark matter. The absence of a signal also provides the most stringent direct constraint on the coupling constant of pseudoscalar super-WIMPs to electrons. The unprecedented sensitivity was achieved exploiting the low background at a level $10^{-4}$ kg${}^{-1}$keV${}_{ee}^{-1}$day${}^{-1}$ in the detector.

arXiv comment12 pages, 3 figures, accepted for publication in Physical Review Letters

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• XMASS detector
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• Searches for electron interactions induced by new physics in the EDELWEISS-III germanium bolometers
• A direct dark matter search in XMASS-I
• A Review of Basic Energy Reconstruction Techniques in Liquid Xenon and Argon Detectors for Dark Matter and Neutrino Physics Using NEST
• Search for dark matter in the form of hidden photons and axion-like particles in the XMASS detector
• Direct dark matter search by annual modulation with 2.7 years of XMASS-I data
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• Dark Matter 2014
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• Development of low radioactivity photomultiplier tubes for the XMASS-I detector
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• On the Role of Neutrinos Telescopes in the Search for Dark Matter Annihilations in the Sun
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• Constraints on Bosonic Dark Matter with Low Threshold Germanium Detector at Kuo-Sheng Reactor Neutrino Laboratory
• Direct dark matter searches with the full data set of XMASS-I
• Search for bosonic super-weakly interacting massive particles at COSINE-100
• Scalability study of solid xenon
• Electron drift in a large scale solid xenon
• Impact of the vector dark matter on polarization of the CMB photon
• Nucleosynthesis constraints on the faint vector portal