Constraints on Sub-GeV Dark Matter--Electron Scattering from the CDEX-10 Experiment Article Swipe

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Z. Y. Zhang , L. T. Yang , Q. Yue , K. J. Kang , Y. J. Li , M. Agartioglu , Haipeng An , J. P. Chang , Y. H. Chen , J. P. Cheng , W. H. Dai , Z. Deng , C. H. Fang , Xiaowan Geng , H. Gong , Q. J. Guo , X. Y. Guo , L. He , S. M. He , Jiawen Hu , H. X. Huang , T. C. Huang , H. T. Jia , Xiaolan Jiang , H. B. Li , J. M. Li , J. Li , Ming-ming Li , Q. Y. Li , R. M. J. Li , X. Q. Li , Y. L. Li , Liang Yu , B. Liao , F. K. Lin , S. T. Lin , S. K. Liu , Yang Liu , Y. D. Liu , Y. Y. Liu , Z. Z. Liu , Haijing Ma , Y. C. Mao , Q. Y. Nie , J. H. Ning , Huanhuan Pan , N. C. Qi , J. Ren , Xichao Ruan , K. Saraswat , C. S. Shang , V. Sharma , Zhiyong She , M. K. Singh , T. X. Sun , C. J. Tang , W. Y. Tang , Y. Tian , G. F. Wang , Lingling Wang , Qing Wang , Y. Wang , Y. X. Wang , H. T. Wong , S. Y. Wu , Y. C. Wu , H. Y. Xing , R. Xu , Yangqi Xu , T. Xue , Y. L. Yan , C. H. Yeh , N. Yi , C. X. Yu , H. J. Yu , J. F. Yue , M. Zeng , Zhenling Zeng , B. T. Zhang , F. S. Zhang , L. Zhang , Z. H. Zhang , K. K. Zhao , M. G. Zhao , J. F. Zhou , Z. Y. Zhou , J. J. Zhu ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2206.04128

We present improved germanium-based constraints on sub-GeV dark matter via dark matter--electron ($χ$-$e$) scattering using the 205.4 kg$\cdot$day dataset from the CDEX-10 experiment. Using a novel calculation technique, we attain predicted $χ$-$e$ scattering spectra observable in high-purity germanium detectors. In the heavy mediator scenario, our results achieve 3 orders of magnitude of improvement for $m_χ$ larger than 80 MeV/c$^2$ compared to previous germanium-based $χ$-$e$ results. We also present the most stringent $χ$-$e$ cross-section limit to date among experiments using solid-state detectors for $m_χ$ larger than 90 MeV/c$^2$ with heavy mediators and $m_χ$ larger than 100 MeV/c$^2$ with electric dipole coupling. The result proves the feasibility and demonstrates the vast potential of a new $χ$-$e$ detection method with high-purity germanium detectors in ultralow radioactive background.

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Physics Dark matter Nuclear physics Electron Scattering Electron scattering Particle physics Optics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2206.04128
PDF: https://arxiv.org/pdf/2206.04128
OA Status: green
Cited By: 1
Related Works: 10
OpenAlex ID: https://openalex.org/W4282037335

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DOI: https://doi.org/10.48550/arxiv.2206.04128

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Title: Constraints on Sub-GeV Dark Matter--Electron Scattering from the CDEX-10 Experiment

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Language: en

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Publication year: 2022

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Publication date: 2022-06-08

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Authors: Z. Y. Zhang, L. T. Yang, Q. Yue, K. J. Kang, Y. J. Li, M. Agartioglu, Haipeng An, J. P. Chang, Y. H. Chen, J. P. Cheng, W. H. Dai, Z. Deng, C. H. Fang, Xiaowan Geng, H. Gong, Q. J. Guo, X. Y. Guo, L. He, S. M. He, Jiawen Hu, H. X. Huang, T. C. Huang, H. T. Jia, Xiaolan Jiang, H. B. Li, J. M. Li, J. Li, Ming-ming Li, Q. Y. Li, R. M. J. Li, X. Q. Li, Y. L. Li, Liang Yu, B. Liao, F. K. Lin, S. T. Lin, S. K. Liu, Yang Liu, Y. D. Liu, Y. Y. Liu, Z. Z. Liu, Haijing Ma, Y. C. Mao, Q. Y. Nie, J. H. Ning, Huanhuan Pan, N. C. Qi, J. Ren, Xichao Ruan, K. Saraswat, C. S. Shang, V. Sharma, Zhiyong She, M. K. Singh, T. X. Sun, C. J. Tang, W. Y. Tang, Y. Tian, G. F. Wang, Lingling Wang, Qing Wang, Y. Wang, Y. X. Wang, H. T. Wong, S. Y. Wu, Y. C. Wu, H. Y. Xing, R. Xu, Yangqi Xu, T. Xue, Y. L. Yan, C. H. Yeh, N. Yi, C. X. Yu, H. J. Yu, J. F. Yue, M. Zeng, Zhenling Zeng, B. T. Zhang, F. S. Zhang, L. Zhang, Z. H. Zhang, K. K. Zhao, M. G. Zhao, J. F. Zhou, Z. Y. Zhou, J. J. Zhu

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Landing page: https://arxiv.org/abs/2206.04128

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Concepts: Physics, Dark matter, Nuclear physics, Electron, Scattering, Electron scattering, Particle physics, Optics

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Cited by: 1

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