Mass limits for dark-matter particles derived from high-energy neutrinos from the Sun
| Autor: | Atsumu Suzuki, R. Van Berg, K. Kaneyuki, Y. Totsuka, Kazumasa Miyano, K. S. Hirata, Yoshihiko Nagashima, Kasuke Takahashi, K. Kihara, L. R. Feldscher, T. Tanimori, Y. Yaginuma, T. Tajima, M. Koshiba, W. Frati, Nobuaki Sato, T. Kajita, K. Nakamura, E. D. Frank, M. Takita, H. Takei, Yasunari Suzuki, Masayuki Nakahata, Yuichi Oyama, Tadashi Kifune, A.K. Mann, E. W. Beier, S. Ohara, H. Miyata, F. M. Newcomer, Soo-Bong Kim, Y. Fukuda, Masaki Mori, Weiya Zhang, Teruhiro Suda, Mitsunori Yamada |
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| Rok vydání: | 1991 |
| Předmět: |
Physics
Particle physics Annihilation Computer Science::Information Retrieval Astrophysics::High Energy Astrophysical Phenomena Solar neutrino High Energy Physics::Phenomenology Center (category theory) Elementary particle Fermion Nuclear physics Massless particle High Energy Physics::Experiment Neutrino Nuclear Experiment Lepton |
| Zdroj: | Physical review. D, Particles and fields. 44(8) |
| ISSN: | 0556-2821 |
| Popis: | High-energy neutrinos could be emitted from the center of the Sun as annihilation products of heavy galactic dark-matter particles. We analyze neutrino events observed by the Kamiokande detector to search for such neutrinos. The observed upper limits on solar high-energy neutrinos from these data set limits on the mass and density of certain galactic dark matter. The particles analyzed are heavy Dirac neutrinos ({nu}{sub {ital D}}), heavy Majorana neutrinos ({nu}{sub {ital M}}), Higgsinos ({ital {tilde h}}), neutrinos ({tilde {nu}}) with three flavors, and photinos ({tilde {gamma}}) as the lightest supersymmetric particles. Excluded mass regions are obtained for each dark-matter candidate: 3 GeV{lt}{ital m}{sub {nu}{ital D}}{lt}100 GeV, 3 GeV{lt}{ital m}{sub n{tilde u}}{ital e}{lt}90 GeV, 3 GeV{lt}{ital m}{sub n}{tilde u}{mu}{lt}90 GeV, and 4 GeV{lt}{ital m}{sub n}{tilde u}{tau}{lt}90 GeV. No limits are obtained on the masses of {nu}{sub {ital M}}, {ital {tilde h}}, and {tilde {gamma}} yet. |
| Databáze: | OpenAIRE |
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