Search for Boosted Dark Matter Interacting With Electrons in Super-Kamiokande

Super-Kamiokande Collaboration: C. Kachulis , K. Abe , C. Bronner , Y. Hayato , M. Ikeda , K. Iyogi , J. Kameda , Y. Kato

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Y. Kishimoto Ll. Marti M. Miura S. Moriyama M. Nakahata Y. Nakano S. Nakayama Y. Okajima A. Orii G. Pronost H. Sekiya M. Shiozawa Y. Sonoda A. Takeda A. Takenaka H. Tanaka S. Tasaka T. Tomura R. Akutsu T. Kajita K. Kaneyuki Y. Nishimura K. Okumura K. M. Tsui L. Labarga P. Fernandez F. d. M. Blaszczyk. J. Gustafson E. Kearns J. L. Raaf J. L. Stone L. R. Sulak S. Berkman S. Tobayama M. Goldhaber M. Elnimr W. R. Kropp S. Mine S. Locke P. Weatherly M. B. Smy H. W. Sobel V. Takhistov K. S. Ganezer J. Hill J. Y. Kim I. T. Lim R. G. Park A. Himmel Z. Li E. O'Sullivan K. Scholberg C. W. Walter T. Ishizuka T. Nakamura J. S. Jang K. Choi J. G. Learned S. Matsuno S. N. Smith J. Amey R. P. Litchfield W. Y. Ma Y. Uchida. M. O. Wascko S. Cao M. Friend T. Hasegawa T. Ishida T. Ishii T. Kobayashi T. Nakadaira K. Nakamura Y. Oyama K. Sakashita T. Sekiguchi T. Tsukamoto KE. Abe M. Hasegawa A. T. Suzuki Y. Takeuchi T. Yano T. Hayashino T. Hiraki S. Hirota K. Huang M. Jiang KE. Nakamura T. Nakaya B. Quilain N. D. Patel R. A. Wendell L. H. V. Anthony N. McCauley A. Pritchard Y. Fukuda Y. Itow M. Murase F. Muto P. Mijakowski K. Frankiewicz C. K. Jung X. Li J. L. Palomino G. Santucci C. Vilela M. J. Wilking C. Yanagisawa S. Ito D. Fukuda H. Ishino A. Kibayashi Y. Koshio H. Nagata M. Sakuda C. Xu Y. Kuno D. Wark F. Di Lodovico B. Richards R. Tacik S. B. Kim A. Cole L. Thompson H. Okazawa Y. Choi K. Ito K. Nishijima M. Koshiba Y. Totsuka Y. Suda M. Yokoyama R. G. Calland M. Hartz K. Martens C. Simpson Y. Suzuki M. R. Vagins D. Hamabe M. Kuze T. Yoshida M. Ishitsuka J. F. Martin C. M. Nantais H. A. Tanaka A. Konaka S. Chen L. Wan Y. Zhang R. J. Wilkes A. Minamino

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classification ✦ hep-ex hep-ph

keywords darkmatterboostedsearchcalculatedcenterelectronsexcess

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A search for boosted dark matter using 161.9 kiloton-years of Super-Kamiokande IV data is presented. We search for an excess of elastically scattered electrons above the atmospheric neutrino background, with a visible energy between 100 MeV and 1 TeV, pointing back to the Galactic Center or the Sun. No such excess is observed. Limits on boosted dark matter event rates in multiple angular cones around the Galactic Center and Sun are calculated. Limits are also calculated for a baseline model of boosted dark matter produced from cold dark matter annihilation or decay.

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Sub-GeV dark matter from cosmic ray bremsstrahlung in the atmosphere
hep-ph 2026-04 unverdicted novelty 5.0

Boosted sub-GeV dark matter from atmospheric cosmic ray bremsstrahlung can be probed by direct detection and neutrino experiments, with enhanced sensitivity near vector mediator resonances.