Constraints on ultraheavy dark matter from the CDEX-10 experiment at the China Jinping Underground Laboratory

Physical review. D/Physical review. D. 2026 Open access

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Authors: Yanfen Wang, L. T. Yang, Q. Yue, K. Kang, Y. J. Li, Haipeng An, C. Greeshma, J. P. Chang, Hong Chen, Y. H. Chen, J. P. Cheng, Jian Yu Cui
+76 more W. H. Dai, Ziqing Deng, Yanbin Dong, C. H. Fang, Huaibin Gong, Q. Guo, Tao Guo, X. Y. Guo, Li He, Jinjin He, H. X. Huang, T. C. Huang, S. Karmakar, Yingqi Lan, H. B. Li, H. Y. Li, J. M. Li, Jinyang Li, Mingchao Li, Q. Y. Li, R. M. J. Li, Xiang Li, Y. L. Li, Y. F. Liang, Bing M. Liao, F. K. Lin, S. T. Lin, J. X. Liu, R. Z. Liu, S. K. Liu, Y. D. Liu, Yao Liu, Y. Y. Liu, Han Ma, Y. C. Mao, A. Mureed, Haijun Pan, N. C. Qi, Jingzheng Ren, Xichao Ruan, M. B. Shen, Huichao Shi, M. K. Singh, Tong Sun, Wenliang Sun, C. J. Tang, Yueqiang Tian, Hong Wan, G. F. Wang, Jian-Peng Wang, Li‐Song Wang, Qin Wang, Qin Wang, Y. X. Wang, H. T. Wong, Yuchi Wu, H. Y. Xing, Kai Xiong, R. F. Xu, Yi Wen Xu, T. Xue, Y. L. Yan, Yi Nan, C. X. Yu, H. J. Yu, Xiaoping Yu, M. Zeng, Zhuo Zeng, F. S. Zhang, P. Zhang, P. Zhang, Z. Y. Zhang, Minggang Zhao, Jingchen Zhou, Z. Y. Zhou, J. J. Zhu
DOI: 10.1103/19fr-wcty
Cited by: 0
References: 49

Abstract

We report a search for ultraheavy dark matter (UHDM) with the CDEX-10 experiment at the China Jinping Underground Laboratory. Using a Monte Carlo framework that incorporates Earth shielding effects, we simulated UHDM propagation and energy deposition in p-type point-contact germanium detectors. Analysis of 205.4 kg · day exposure in the 0.16–4.16 keVee range showed no excess above background. Our results exclude the spin-independent UHDM-nucleon scattering with two cross section scales, with the UHDM mass from 10 6 to 10 11 GeV , and provide the most stringent constraints with solid-state detectors below 10 8 GeV .

Fields of Study & Subjects

Dark Matter and Cosmic Phenomena Particle physics theoretical and experimental studies Particle Detector Development and Performance

Publication details

Journal / source
Physical review. D/Physical review. D.
Volume
113
Issue
5
Publication date
11 March 2026
Language
EN