@article{572353e15912465cb58e994c15449ad6,
title = "Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande",
abstract = "We report a search for cosmic-ray boosted dark matter with protons using the 0.37 megaton×years data collected at Super-Kamiokande experiment during the 1996-2018 period (SKI-IV phase). We searched for an excess of proton recoils above the atmospheric neutrino background from the vicinity of the Galactic Center. No such excess is observed, and limits are calculated for two reference models of dark matter with either a constant interaction cross section or through a scalar mediator. This is the first experimental search for boosted dark matter with hadrons using directional information. The results present the most stringent limits on cosmic-ray boosted dark matter and exclude the dark matter-nucleon elastic scattering cross section between 10-33cm2 and 10-27cm2 for dark matter mass from 1 MeV/c2 to 300 MeV/c2.",
author = "{(Super-Kamiokande Collaboration)} and K. Abe and Y. Hayato and K. Hiraide and K. Ieki and M. Ikeda and J. Kameda and Y. Kanemura and R. Kaneshima and Y. Kashiwagi and Y. Kataoka and S. Miki and S. Mine and M. Miura and S. Moriyama and Y. Nakano and M. Nakahata and S. Nakayama and Y. Noguchi and K. Okamoto and K. Sato and H. Sekiya and H. Shiba and K. Shimizu and M. Shiozawa and Y. Sonoda and Y. Suzuki and A. Takeda and Y. Takemoto and A. Takenaka and H. Tanaka and S. Watanabe and T. Yano and S. Han and T. Kajita and K. Okumura and T. Tashiro and T. Tomiya and X. Wang and J. Xia and S. Yoshida and Megias, {G. D.} and P. Fernandez and L. Labarga and N. Ospina and B. Zaldivar and Pointon, {B. W.} and K. Nakamura and H. Ozaki and Ichikawa, {A. K.} and Nakamura, {K. D.}",
note = "Funding Information: We thank Dr. Yohei Ema for providing the CRDM flux and insightful discussions. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. The Super-Kamiokande experiment has been built and operated from funding by the Japanese Ministry of Education, Culture, Sports, Science and Technology, the U.S. Department of Energy, and the U.S. National Science Foundation. Some of us have been supported by funds from the National Research Foundation of Korea NRF20090083526 (KNRC) funded by the Ministry of Science, ICT, and Future Planning and the Ministry of Education (2018R1D1A3B07050696, 2018R1D1A1B07049158), the Japan Society for the Promotion of Science, the National Natural Science Foundation of China under Grants No. 11620101004, the Spanish Ministry of Science, Universities and Innovation (Grant No. PGC2018-099388-B-I00), the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Scinet and Westgrid consortia of Compute Canada, the National Science Centre, Poland (2015/18/E/ST2/00758), the Science and Technology Facilities Council (STFC) and GridPPP, U.K., the European Union{\textquoteright}s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 754496, H2020-MSCA-RISE-2018 JENNIFER2 Grant Agreement No. 822070, and H2020-MSCA-RISE-2019 SK2HK Grant Agreement No. 872549. Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society.",
year = "2023",
month = jan,
day = "20",
doi = "10.1103/PhysRevLett.130.031802",
language = "English",
volume = "130",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "3",
}