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<p>Founded in 2009, the China Dark Matter Experiment (CDEX) collaboration was dedicated to the detection of dark matter (DM) and neutrinoless double beta decay using high-purity germanium (HPGe) detectors in the China Jinping Underground Laboratory. HPGe detectors are characterized by a high energy resolution, low analysis threshold, and low radioactive background, making them an ideal platform for the direct detection of DM. Over the years, CDEX has accumulated a massive amount of experimental data, based on which various results on DM detection and neutrinoless double beta decay have been presented. Because the dataset was collected in a low-background environment, apart from the analysis of DM-related physical channels, it has great potential as an indicator in other rare physical events searches. Furthermore, by providing raw pulse shapes, the dataset can serve as a tool for effectively understanding the internal mechanisms of HPGe detectors.</p>

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Experimental dataset from CDEX’s high-purity germanium detectors in China Jinping Underground Laboratory

  • 期刊论文

  • 发表日期：

    2025年9月20日

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  • Li-Tao Yang,
  • Zhen-Yu Zhang,
  • Hao Ma,
  • Qian Yue,
  • Zhi Zeng

摘要

Founded in 2009, the China Dark Matter Experiment (CDEX) collaboration was dedicated to the detection of dark matter (DM) and neutrinoless double beta decay using high-purity germanium (HPGe) detectors in the China Jinping Underground Laboratory. HPGe detectors are characterized by a high energy resolution, low analysis threshold, and low radioactive background, making them an ideal platform for the direct detection of DM. Over the years, CDEX has accumulated a massive amount of experimental data, based on which various results on DM detection and neutrinoless double beta decay have been presented. Because the dataset was collected in a low-background environment, apart from the analysis of DM-related physical channels, it has great potential as an indicator in other rare physical events searches. Furthermore, by providing raw pulse shapes, the dataset can serve as a tool for effectively understanding the internal mechanisms of HPGe detectors.