1. Limits on Light Weakly Interacting Massive Particles from the First 102.8 kg×day Data of the CDEX-10 Experiment
- Author
-
J. L. Ma, Qiang Du, H. P. An, Hao Ma, Jun Ren, Tianxi Sun, Henry T. Wong, Hechuan Jiang, L. He, H. B. Li, Kejun Kang, X. H. Zeng, Y. H. Zhang, H. Pan, Hao-Yang Xing, S. K. Liu, Zhi Deng, Ye Chen, N. Yi, M. G. Zhao, Qian Yue, C. X. Yu, Yucheng Wu, M. Agartioglu, F. K. Lin, Y. Y. Liu, Zuowei Liu, L. T. Yang, W. Y. Tang, G. F. Wang, Lei Wang, J. P. Chang, J. Cheng, C. J. Tang, J. F. Zhou, J. M. Wang, Tian Xue, Zhi Zeng, Song-Wei Yang, L. Singh, J. Li, X. Q. Li, Feng-Shou Zhang, Yuanjing Li, Y. D. Liu, Jing-Han Chen, Shengzhou Wu, B. Liao, Q. D. Hu, X. C. Ruan, J. F. Yue, Y. Wang, Zhong-Hua Zhu, Y. Li, Yang Tian, B. Sevda, L. P. Jia, Shin-Ted Lin, X. N. Li, Qian Wang, Man-Bin Shen, J.J. Zhu, Hanxiong Huang, Ming Zeng, Jia-Ming Li, Honghan Gong, J. W. Hu, Z. Y. Zhou, H. J. Yu, Yin Xu, V. D. Sharma, Manoj Kumar Singh, and Hau-Bin Li
- Subjects
Nuclear physics ,Physics ,WIMP ,010308 nuclear & particles physics ,Weakly interacting massive particles ,0103 physical sciences ,China Jinping Underground Laboratory ,General Physics and Astronomy ,Liquid nitrogen ,010306 general physics ,01 natural sciences ,Semiconductor detector - Abstract
We report the first results of a light weakly interacting massive particles (WIMPs) search from the CDEX-10 experiment with a 10 kg germanium detector array immersed in liquid nitrogen at the China Jinping Underground Laboratory with a physics data size of 102.8 kg day. At an analysis threshold of 160 eVee, improved limits of 8×10^{-42} and 3×10^{-36} cm^{2} at a 90% confidence level on spin-independent and spin-dependent WIMP-nucleon cross sections, respectively, at a WIMP mass (m_{χ}) of 5 GeV/c^{2} are achieved. The lower reach of m_{χ} is extended to 2 GeV/c^{2}.
- Published
- 2018
- Full Text
- View/download PDF