Search for dark matter from the first data of the PandaX-II experiment

Abstract

Results of WIMP dark matter search from the first data of the PandaX-II experiment are presented. PandaX-II experiment uses a 500 kg scale dual phase liquid xenon time projection chamber, operating at the China JinPing Underground Laboratory. The first data correspond to a total exposure of $3.1\times 10^4$ kg-day. The observed data after selections are found to be consistent with background expection, and upper limits of the spin-independent WIMP-nucleon cross sections are derived for a range of WIMP mass between 5 GeV/c${}^2$ and 1000 GeV/$c^2$. The lowest cross section limit obtained is 2.5$\times$10${}^{-46}$ cm${}^2$ at a WIMP mass of 40 GeV/c${}^2$.

Conference proceeding submitted for the 38th International Conference on High Energy Physics 2016, Chicago, IL, USA

References in corpus (3)

• Spin-Dependent Weakly-Interacting-Massive-Particle--Nucleon Cross Section Limits from First Data of PandaX-II Experiment
• First dark matter search results from the PandaX-I experiment
• PandaX-III: Searching for Neutrinoless Double Beta Decay with High Pressure Gaseous Time Projection Chambers

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