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Spin-Dependent Weakly-Interacting-Massive-Particle-Nucleon Cross Section Limits from First Data of PandaX-II Experiment.
Fu, Changbo; Cui, Xiangyi; Zhou, Xiaopeng; Chen, Xun; Chen, Yunhua; Fang, Deqing; Giboni, Karl; Giuliani, Franco; Han, Ke; Huang, Xingtao; Ji, Xiangdong; Ju, Yonglin; Lei, Siao; Li, Shaoli; Liu, Huaxuan; Liu, Jianglai; Ma, Yugang; Mao, Yajun; Ren, Xiangxiang; Tan, Andi; Wang, Hongwei; Wang, Jiming; Wang, Meng; Wang, Qiuhong; Wang, Siguang; Wang, Xuming; Wang, Zhou; Wu, Shiyong; Xiao, Mengjiao; Xie, Pengwei; Yan, Binbin; Yang, Yong; Yue, Jianfeng; Zhang, Hongguang; Zhang, Tao; Zhao, Li; Zhou, Ning.
Afiliação
  • Fu C; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Cui X; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Zhou X; School of Physics, Peking University, Beijing 100871, China.
  • Chen X; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Chen Y; Yalong River Hydropower Development Company, Ltd., 288 Shuanglin Road, Chengdu 610051, China.
  • Fang D; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800 Shanghai, China.
  • Giboni K; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Giuliani F; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Han K; Center of High Energy Physics, Peking University, Beijing 100871, China.
  • Huang X; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Ji X; School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan 250100, China.
  • Ju Y; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Lei S; Center of High Energy Physics, Peking University, Beijing 100871, China.
  • Li S; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Liu H; T. D. Lee Institute, Shanghai 200240, China.
  • Liu J; School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Ma Y; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Mao Y; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Ren X; School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Tan A; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Wang H; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800 Shanghai, China.
  • Wang J; School of Physics, Peking University, Beijing 100871, China.
  • Wang M; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Wang Q; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Wang S; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800 Shanghai, China.
  • Wang X; Yalong River Hydropower Development Company, Ltd., 288 Shuanglin Road, Chengdu 610051, China.
  • Wang Z; School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan 250100, China.
  • Wu S; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800 Shanghai, China.
  • Xiao M; School of Physics, Peking University, Beijing 100871, China.
  • Xie P; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Yan B; School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Yang Y; Yalong River Hydropower Development Company, Ltd., 288 Shuanglin Road, Chengdu 610051, China.
  • Yue J; Center of High Energy Physics, Peking University, Beijing 100871, China.
  • Zhang H; Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
  • Zhang T; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
  • Zhao L; School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan 250100, China.
  • Zhou N; INPAC and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai 200240, China.
Phys Rev Lett ; 118(7): 071301, 2017 Feb 17.
Article em En | MEDLINE | ID: mdl-28256892
ABSTRACT
New constraints are presented on the spin-dependent weakly-interacting-massive-particle–- (WIMP-)nucleon interaction from the PandaX-II experiment, using a data set corresponding to a total exposure of 3.3×10^{4} kg day. Assuming a standard axial-vector spin-dependent WIMP interaction with ^{129}Xe and ^{131}Xe nuclei, the most stringent upper limits on WIMP-neutron cross sections for WIMPs with masses above 10 GeV/c^{2} are set in all dark matter direct detection experiments. The minimum upper limit of 4.1×10^{-41} cm^{2} at 90% confidence level is obtained for a WIMP mass of 40 GeV/c^{2}. This represents more than a factor of 2 improvement on the best available limits at this and higher masses. These improved cross-section limits provide more stringent constraints on the effective WIMP-proton and WIMP-neutron couplings.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2017 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2017 Tipo de documento: Article