Constraints on ultraheavy dark matter from the CDEX-10 experiment at the China Jinping Underground Laboratory
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2025
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| author | Wang, Y. F. Yang, L. T. Yue, Q. Kang, K. J. Li, Y. J. An, H. P. C., Greeshma Chang, J. P. Chen, H. Chen, Y. H. Cheng, J. P. Cui, J. Y. Dai, W. H. Deng, Z. Dong, Y. X. Fang, C. H. Gong, H. Guo, Q. J. Guo, T. Guo, X. Y. He, L. He, J. R. Huang, H. X. Huang, T. C. Karmakar, S. Lan, Y. S. Li, H. B. Li, H. Y. Li, J. M. Li, J. Li, M. C. Li, Q. Y. Li, R. M. J. Li, X. Q. Li, Y. L. Liang, Y. F. Liao, B. Lin, F. K. Lin, S. T. Liu, J. X. Liu, R. Z. Liu, S. K. Liu, Y. D. Liu, Y. Liu, Y. Y. Ma, H. Mao, Y. C. Mureed, A. Pan, H. Qi, N. C. Ren, J. Ruan, X. C. Shen, M. B. Shi, H. Y. Singh, M. K. Sun, T. X. Sun, W. L. Tang, C. J. Tian, Y. Wan, H. F. Wang, G. F. Wang, J. Z. Wang, L. Wang, Q. Wang, Q. Wang, Y. X. Wong, H. T. Wu, Y. C. Xing, H. Y. Xiong, K. Z. Xu, R. Xu, Y. Xue, T. Yan, Y. L. Yi, N. Yu, C. X. Yu, H. J. Yu, X. Zeng, M. Zeng, Z. Zhang, F. S. Zhang, P. Zhang, P. Zhang, Z. Y. Zhao, M. G. Zhou, J. F. Zhou, Z. Y. Zhu, J. J. |
| author_facet | Wang, Y. F. Yang, L. T. Yue, Q. Kang, K. J. Li, Y. J. An, H. P. C., Greeshma Chang, J. P. Chen, H. Chen, Y. H. Cheng, J. P. Cui, J. Y. Dai, W. H. Deng, Z. Dong, Y. X. Fang, C. H. Gong, H. Guo, Q. J. Guo, T. Guo, X. Y. He, L. He, J. R. Huang, H. X. Huang, T. C. Karmakar, S. Lan, Y. S. Li, H. B. Li, H. Y. Li, J. M. Li, J. Li, M. C. Li, Q. Y. Li, R. M. J. Li, X. Q. Li, Y. L. Liang, Y. F. Liao, B. Lin, F. K. Lin, S. T. Liu, J. X. Liu, R. Z. Liu, S. K. Liu, Y. D. Liu, Y. Liu, Y. Y. Ma, H. Mao, Y. C. Mureed, A. Pan, H. Qi, N. C. Ren, J. Ruan, X. C. Shen, M. B. Shi, H. Y. Singh, M. K. Sun, T. X. Sun, W. L. Tang, C. J. Tian, Y. Wan, H. F. Wang, G. F. Wang, J. Z. Wang, L. Wang, Q. Wang, Q. Wang, Y. X. Wong, H. T. Wu, Y. C. Xing, H. Y. Xiong, K. Z. Xu, R. Xu, Y. Xue, T. Yan, Y. L. Yi, N. Yu, C. X. Yu, H. J. Yu, X. Zeng, M. Zeng, Z. Zhang, F. S. Zhang, P. Zhang, P. Zhang, Z. Y. Zhao, M. G. Zhou, J. F. Zhou, Z. Y. Zhu, J. J. |
| contents | 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$\cdot$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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_21458 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraints on ultraheavy dark matter from the CDEX-10 experiment at the China Jinping Underground Laboratory Wang, Y. F. Yang, L. T. Yue, Q. Kang, K. J. Li, Y. J. An, H. P. C., Greeshma Chang, J. P. Chen, H. Chen, Y. H. Cheng, J. P. Cui, J. Y. Dai, W. H. Deng, Z. Dong, Y. X. Fang, C. H. Gong, H. Guo, Q. J. Guo, T. Guo, X. Y. He, L. He, J. R. Huang, H. X. Huang, T. C. Karmakar, S. Lan, Y. S. Li, H. B. Li, H. Y. Li, J. M. Li, J. Li, M. C. Li, Q. Y. Li, R. M. J. Li, X. Q. Li, Y. L. Liang, Y. F. Liao, B. Lin, F. K. Lin, S. T. Liu, J. X. Liu, R. Z. Liu, S. K. Liu, Y. D. Liu, Y. Liu, Y. Y. Ma, H. Mao, Y. C. Mureed, A. Pan, H. Qi, N. C. Ren, J. Ruan, X. C. Shen, M. B. Shi, H. Y. Singh, M. K. Sun, T. X. Sun, W. L. Tang, C. J. Tian, Y. Wan, H. F. Wang, G. F. Wang, J. Z. Wang, L. Wang, Q. Wang, Q. Wang, Y. X. Wong, H. T. Wu, Y. C. Xing, H. Y. Xiong, K. Z. Xu, R. Xu, Y. Xue, T. Yan, Y. L. Yi, N. Yu, C. X. Yu, H. J. Yu, X. Zeng, M. Zeng, Z. Zhang, F. S. Zhang, P. Zhang, P. Zhang, Z. Y. Zhao, M. G. Zhou, J. F. Zhou, Z. Y. Zhu, J. J. High Energy Physics - Experiment High Energy Physics - Phenomenology Instrumentation and Detectors 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$\cdot$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. |
| title | Constraints on ultraheavy dark matter from the CDEX-10 experiment at the China Jinping Underground Laboratory |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology Instrumentation and Detectors |
| url | https://arxiv.org/abs/2510.21458 |