Introduction of the CDEX experiment
| Autor: | Tao Xue, Hao-Yang Xing, Chunxu Yu, Yong Bi, Yunhua Chen, Qing Wang, J. Q. Qin, Qian Yue, Q. Du, Yun-Hua Zhang, Shiyong Wu, Xi-Qing Hao, Jun Li, Hao Jiang, Xichao Ruan, Y. C. Chuang, Ning Chen, Nan Chen, Su-Ning Zhong, Ji-Min Wang, Jin Zhou, Jie Ren, Zhong-Hua Zhu, Yulan Li, L. T. Yang, Yin Xu, Wei Zhao, Xun-Jie Xu, Xue-Qian Li, Manoj Kumar Singh, Man-Bin Shen, Li Wang, F. K. Lin, J. P. Chang, Xin-Ying Li, Lan Zhang, Z. Y. Zhou, S. T. Lin, Hau-Bin Li, Qing-Hao Chen, Hao Ma, N. Yi, Teng-Rui Huang, Jianmin Li, Chang-Jian Tang, Jing Ren, Yuanjing Li, Jian Su, Wei-Bin Zhu, X. H. Zeng, Yucheng Wu, Qing-Ju He, Y. Y. Liu, Arun Kumar Soma, Yang Bai, X. Z. Yu, Zhi Deng, Xin-Hui Hu, Z. Z. Xianyu, Xia Li, S. K. Liu, Hong-Jian He, Chao-Hsiung Tseng, Kejun Kang, Ming-Gang Zhao, Hao Yu, Song-Wei Yang, H. Y. Liao, Jianping Cheng, Jin Li, X. Z. Zhu, Tsz-King Henry Wong, Wei Wu, Lakhwinder Simgh, Zhi Zeng, Xu-Feng Wang, L. C. Lü, Hanxiong Huang, J.J. Zhu, S. J. Mao, Hui Gong |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Physics - Instrumentation and Detectors Physics and Astronomy (miscellaneous) media_common.quotation_subject Detector Dark matter China Jinping Underground Laboratory FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) Universe Semiconductor detector High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) China Dark Matter Experiment WIMP Weakly interacting massive particles Astrophysics - Instrumentation and Methods for Astrophysics Instrumentation and Methods for Astrophysics (astro-ph.IM) media_common |
| Popis: | Weakly Interacting Massive Particles (WIMPs) are the candidates of dark matter in our universe. Up to now any direct interaction of WIMP with nuclei has not been observed yet. The exclusion limits of the spin-independent cross section of WIMP-nucleon which have been experimentally obtained is about 10^{-7}pb at high mass region and only 10^{-5}pb} at low mass region. China Jin-Ping underground laboratory CJPL is the deepest underground lab in the world and provides a very promising environment for direct observation of dark matter. The China Dark Matter Experiment (CDEX) experiment is going to directly detect the WIMP flux with high sensitivity in the low mass region. Both CJPL and CDEX have achieved a remarkable progress in recent two years. The CDEX employs a point-contact germanium semi-conductor detector PCGe whose detection threshold is less than 300 eV. We report the measurement results of Muon flux, monitoring of radioactivity and Radon concentration carried out in CJPL, as well describe the structure and performance of the 1 kg PCGe detector CDEX-1 and 10kg detector array CDEX-10 including the detectors, electronics, shielding and cooling systems. Finally we discuss the physics goals of the CDEX-1, CDEX-10 and the future CDEX-1T detectors. 36pages,39 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|