{"paper":{"title":"Scintillation-only Based Pulse Shape Discrimination for Nuclear and Electron Recoils in Liquid Xenon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A.Shinozaki, A.Takeda, D.Motoki, H.Nishiie, H.Ogawa, H.Ohsumi, H.Sekiya, H.Uchida, I.Murayama, J.Liu, J.S.Lee the XMASS Collaboration, K.Abe, K.B.Lee, K.Fujii, K.Hiraide, K.Kobayashi, K.Martens, K.Masuda, K.Nishijima, K.Otsuka, K.Ueshima, M.K.Lee, M.Nakahata, M.Yamashita, S.Hirano, S.Moriyama, S.Nakamura, S.Tasaka, Y.D.Kim, Y.Fukuda, Y.H.Kim, Y.Itow, Y.Kishimoto, Y.Koshio, Y.Nishitani, Y.Suzuki, Y.Takeuchi","submitted_at":"2011-06-11T06:37:20Z","abstract_excerpt":"In a dedicated test setup at the Kamioka Observatory we studied pulse shape discrimination (PSD) in liquid xenon (LXe) for dark matter searches. PSD in LXe was based on the observation that scintillation light from electron events was emitted over a longer period of time than that of nuclear recoil events, and our method used a simple ratio of early to total scintillation light emission in a single scintillation event. Requiring an efficiency of 50% for nuclear recoil retention we reduced the electron background to 7.7\\pm1.1(stat)\\pm1.2 0.6(sys)\\times10-2 at energies between 4.8 and 7.2 keVee "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2209","kind":"arxiv","version":1},"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"}