@article{e3b880c0dcaa4366b07fc30b6bd33c41,
title = "A direct dark matter search in XMASS-I",
abstract = "A search for dark matter using an underground single-phase liquid xenon detector was conducted at the Kamioka Observatory in Japan, particularly for Weakly Interacting Massive Particles (WIMPs). We have used 705.9 live days of data in a fiducial volume containing 97kg of liquid xenon at the center of the detector. The event rate in the fiducial volume after the data reduction was (4.2±0.2)×10−3day−1kg−1keVee −1 at 5keVee, with a signal efficiency of 20%. All the remaining events are consistent with our background evaluation, mostly of the “mis-reconstructed events” originated from 210Pb in the copper plates lining the detector's inner surface. The obtained upper limit on a spin-independent WIMP-nucleon cross section was 2.2×10−44cm2 for a WIMP mass of 60GeV/c2 at the 90% confidence level, which was the most stringent limit among results from single-phase liquid xenon detectors.",
keywords = "Dark matter, Liquid xenon, Low background",
author = "{XMASS Collaboration} and K. Abe and K. Hiraide and K. Ichimura and Y. Kishimoto and K. Kobayashi and M. Kobayashi and S. Moriyama and M. Nakahata and T. Norita and H. Ogawa and K. Sato and H. Sekiya and O. Takachio and A. Takeda and S. Tasaka and M. Yamashita and Yang, {B. S.} and Kim, {N. Y.} and Kim, {Y. D.} and Y. Itow and K. Kanzawa and R. Kegasa and K. Masuda and H. Takiya and K. Fushimi and G. Kanzaki and K. Martens and Y. Suzuki and Xu, {B. D.} and R. Fujita and K. Hosokawa and K. Miuchi and N. Oka and Y. Takeuchi and Kim, {Y. H.} and Lee, {K. B.} and Lee, {M. K.} and Y. Fukuda and M. Miyasaka and K. Nishijima and S. Nakamura",
note = "Funding Information: We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. This work was supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology , the joint research program of the Institute for Cosmic Ray Research (ICRR), the University of Tokyo , Grant-in-Aid for Scientific Research, JSPS KAKENHI Grant No. 19GS0204 and 26104004 , and partially by the National Research Foundation of Korea Grant ( NRF-2011-220-C00006 ) and Institute for Basic Science (IBS-R017-G1-2018-a00). Publisher Copyright: {\textcopyright} 2018 The Author",
year = "2019",
month = feb,
day = "10",
doi = "10.1016/j.physletb.2018.10.070",
language = "English",
volume = "789",
pages = "45--53",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
}