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

  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},
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… 

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