Dark Matter Search Results from the Commissioning Run of PandaX-II

@article{Tan2016DarkMS,
  title={Dark Matter Search Results from the Commissioning Run of PandaX-II},
  author={PandaX Collaboration Andi Tan and Xiang Xiao and Xiangyi Cui and Xun Chen and Yunhua Chen and De-Qing Fang and C Fu and Karl Ludwig Giboni and Franco Giuliani and Haowei Gong and Shouyang Hu and Xing Tao Huang and Xiangdong Ji and Yonglin Ju and Siao Lei and Shaoli Li and Xiaomei Li and Xinglong Li and Haojun Liang and Q. Lin and Huaxuan Liu and Jianglai Liu and Wolfgang Lorenzon and Yugang Ma and Yajun Mao and Kaixuan Ni and Kirill Pushkin and Xiangxiang Ren and Michael S. Schubnell and Manbin Shen and Fangxia Shi and Scott Stephenson and Hongwei Wang and Jimin Wang and Meng Wang and Qiuhong Wang and Siguang Wang and Xuming Wang and Zhou Wang and Shiyong Wu and Meng Xiao and Pengwei Xie and Binbin Yan and Yong Yang and Jianfeng Yue and Xionghui Zeng and Hongguang Zhang and Hua Zhang and Hua Zhang and Tao Zhang and Li Zhao and Jing Zhou and Xiaopeng Zhou},
  journal={Physical Review D},
  year={2016},
  volume={93},
  pages={122009}
}
We present the results of a search for WIMPs from the commissioning run of the PandaX-II experiment located at the China Jinping underground Laboratory. A WIMP search data set with an exposure of 306$\times$19.1 kg-day was taken, while its dominant $^{85}$Kr background was used as the electron recoil calibration. No WIMP candidates are identified, and a 90\% upper limit is set on the spin-independent elastic WIMP-nucleon cross section with a lowest excluded cross section of 2.97$\times$10$^{-45… 

Figures and Tables from this paper

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

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

Search for Light Dark Matter-Electron Scattering in the PandaX-II Experiment.

Under the assumption of point interaction, the world's most stringent limit within the dark matter mass range from 15 to 30  MeV/c^{2}, with the corresponding cross section from 2.5×10^{-37} to 3.1×10″ cm^{2}.

First Results from the DEAP-3600 Dark Matter Search with Argon at SNOLAB.

The first results of a direct dark matter search with the DEAP-3600 single-phase liquid argon (LAr) detector are reported, which results in the leading limit on weakly interacting massive particle (WIMP)-nucleon spin-independent cross section on argon.

Results of dark matter search using the full PandaX-II exposure

We report the dark matter search results obtained using the full 132 ton·day exposure of the PandaX-II experiment, including all data from March 2016 to August 2018. No significant excess of events

Status and recent dark matter search results from the PandaX experiment

The PandaX project is a staged xenon-based deep underground experiment at the China Jin-Ping Underground Laboratory. The first phase experiment, PandaX-I, a 120 kg dark matter detector using the dual

Searching for neutrino-less double beta decay of 136Xe with PandaX-II liquid xenon detector

We report the Neutrino-less Double Beta Decay (NLDBD) search results from PandaX-II dual-phase liquid xenon time projection chamber. The total live time used in this analysis is 403.1 days from June

Estimating the surface backgrounds in PandaX-II WIMP search data

  • D. Zhang
  • Physics
    Journal of Instrumentation
  • 2019
We estimate the contribution of surface backgrounds, the radioactivities from the wall, in the search window of weakly interacting dark matter particles (WIMPs) with data outside of the window in the

A Search for Solar Axions and Anomalous Neutrino Magnetic Moment with the Complete PandaX-II Data

We report a search for new physics signals using the low energy electron recoil events in the complete data set from PandaX-II, in light of the recent event excess reported by XENON1T. The data

Prepared for submission to JINST Horizontal Position Reconstruction in PandaX-II PandaX Collaboration

Dual-phase noble-gas time projection chambers (TPCs) have improved the sensitivities for dark matter direct search in past decades. The capability of TPCs to reconstruct 3-D vertexes of keV scale
...