Open AccessWIMP search from XMASS-I fiducial volume data with background prediction
Author(s) -
Atsushi Takeda
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1342/1/012080
Subject(s) - wimp , fiducial marker , physics , xenon , dark matter , volume (thermodynamics) , nuclear physics , observatory , confidence interval , particle physics , astrophysics , medicine , computer science , artificial intelligence , quantum mechanics
XMASS-I is a single-phase liquid xenon detector located underground in Kamioka Observatory mainly aiming direct detection of dark matter. We performed a WIMP search in a fiducial volume containing 96.5 kg liquid xenon using 705.9 live days of data between November 2013 and March 2016. All events remaining in the fiducial volume after data reduction were consistent with only background prediction from careful evaluation of it. In conclusion, a 90% confidence level upper limit on the spin-independent WIMP-nucleon cross section of 2.2×10 −44 cm 2 for a WIMP mass of 60 GeV/c 2 was derived.