Results of Dark Matter Search using the Full PandaX-II Exposure

Abstract

We report the dark matter search results obtained using the full 132 ton$\cdot$day exposure of the PandaX-II experiment, including all data from March 2016 to August 2018. No significant excess of events is identified above the expected background. Upper limits are set on the spin-independent dark matter-nucleon interactions. The lowest 90% confidence level exclusion on the spin-independent cross section is $2.2\times 10^{-46}$ cm${}^2$ at a WIMP mass of 30 GeV/$c^2$.

Comments: 23 pages, 19 figures, 6 tables, version published in Chinese Physics C