{"paper":{"title":"Search for sub-GeV dark matter by annual modulation using XMASS-I detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","physics.ins-det"],"primary_cat":"astro-ph.CO","authors_text":"A. Takeda, B. D. Xu, B. S. Yang, G. Kanzaki, H. Ogawa, H. Sekiya, K. Abe, K. B. Lee, K. Fushimi, K. Hiraide, K. Ichimura, K. Kanzawa, K. Kobayashi, K. Martens, K. Masuda, K. Miuchi, K. Nishijima, K. Sato, M. K. Lee, M. Kobayashi, M. Miyasaka, M. Nakahata, M. Yamashita, N. Oka, N. Y. Kim, S. Moriyama, S. Nakamura (XMASS collaboration), S. Tasaka, T. Suzuki, Y. D. Kim, Y. Fukuda, Y. H. Kim, Y. Itow, Y. Kishimoto, Y. Suzuki, Y. Takeuchi","submitted_at":"2018-08-19T07:15:59Z","abstract_excerpt":"A search for dark matter (DM) with mass in the sub-GeV region (0.32-1 GeV) was conducted by looking for an annual modulation signal in XMASS, a single-phase liquid xenon detector. Inelastic nuclear scattering accompanied by bremsstrahlung emission was used to search down to an electron equivalent energy of 1 keV. The data used had a live time of 2.8 years (3.5 years in calendar time), resulting in a total exposure of 2.38 ton-years. No significant modulation signal was observed and 90% confidence level upper limits of $1.6 \\times 10^{-33}$ cm$^2$ at 0.5 GeV was set for the DM-nucleon cross sec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06177","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}