CDEX dark matter experiment: Status and prospects
Hao Ma, Yang Chen, Qian Yue, Li Wang, Tao Xue, Zhi Zeng, Kejun Kang,, Jianping Cheng, Yuanjing Li, Jianmin Li, Yulan Li for CDEX Collaboration
TL;DR
The CDEX experiment searches for light WIMPs using germanium detectors at CJPL, reporting prototype results and outlining future plans for larger-scale detectors to improve dark matter detection sensitivity.
Contribution
This paper presents the status of the CDEX dark matter search program, including prototype results and future developments with ton-scale germanium detectors.
Findings
Prototype CDEX-1 detector results reported.
Progress in reducing detection thresholds.
Development of larger CDEX-10 and CDEX-1T experiments.
Abstract
The China Dark Matter Experiment (CDEX) aims at direct searches of light Weakly Interacting Massive Particles (WIMPs) at the China Jinping Underground Laboratory (CJPL) with an overburden of about 2400m rock. Results from a prototype CDEX-1 994 g p-type Point Contact Germanium(pPCGe) detector are reported. Research programs are pursued to further reduce the physics threshold by improving hardware and data analysis. The CDEX-10 experiment with a pPCGe array of 10 kg target mass range is being tested. The evolution of CDEX program into "CDEX-1T Experiment" with ton-scale germanium detector arrays will also be introduced in this study.
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