Search for bosonic superweakly interacting massive dark matter particles with the XMASS-I detector
| Autor: | K. Hosokawa, Atsushi Takeda, D. Umemoto, Shigeki Tasaka, A. Shinozaki, Kazuhiko Nakagawa, S. Hirano, B. S. Yang, Y. Takeuchi, K.B. Lee, K. Hieda, Shogo Nakamura, H. Uchida, Ko Abe, Masayuki Nakahata, N. Oka, Shigetaka Moriyama, K. Nishijima, K. Martens, I. Murayama, Yoshihisa Otsuka, Jing Liu, K. Kobayashi, H. Takiya, Yoshitaka Itow, Hiroshi Ogawa, Y. D. Kim, Yong Hamb Kim, Nam Young Kim, Hiroyuki Sekiya, Y. Fukuda, M.K. Lee, Kentaro Miuchi, Jong-Man Lee, Masaki Yamashita, K. Ichimura, F. Kusaba, O. Takachio, Y. Kishimoto, Y. Onishi, Kimiaki Masuda, Yoshihiro Suzuki, K. Fujii, A. Murata, Katsuki Hiraide |
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| Rok vydání: | 2014 |
| Předmět: |
Coupling constant
Physics Range (particle radiation) Particle physics Physics - Instrumentation and Detectors Cosmology and Nongalactic Astrophysics (astro-ph.CO) Physics::Instrumentation and Detectors Dark matter Scalar field dark matter General Physics and Astronomy FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Instrumentation and Detectors (physics.ins-det) High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex) Warm dark matter Invariant mass Nuclear Experiment (nucl-ex) Light dark matter Nuclear Experiment Boson Astrophysics - Cosmology and Nongalactic Astrophysics |
| DOI: | 10.48550/arxiv.1406.0502 |
| Popis: | 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. Comment: 12 pages, 3 figures, accepted for publication in Physical Review Letters |
| Databáze: | OpenAIRE |
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