Experimental Limits on Solar Reflected Dark Matter with a New Approach on Accelerated-Dark-Matter-Electron Analysis in Semiconductors
Abstract
Recently a dark matter-electron (DM-electron) paradigm has drawn much attention. Models beyond the standard halo model describing DM accelerated by high energy celestial bodies are under intense examination as well. In this Letter, a velocity components analysis (VCA) method dedicated to swift analysis of accelerated DM-electron interactions via semiconductor detectors is proposed and the first HPGe detector-based accelerated DM-electron analysis is realized. Utilizing the method, the first germanium based constraint on sub-GeV solar reflected DM-electron interaction is presented with the 205.4 kgday dataset from the CDEX-10 experiment. In the heavy mediator scenario, our result excels in the mass range of 515 keV/, achieving a 3 orders of magnitude improvement comparing with previous semiconductor experiments. In the light mediator scenario, the strongest laboratory constraint for DM lighter than 0.1 MeV/ is presented. The result proves the feasibility and demonstrates the vast potential of the VCA technique in future accelerated DM-electron analyses with semiconductor detectors.
Keywords
Cite
@article{arxiv.2309.14982,
title = {Experimental Limits on Solar Reflected Dark Matter with a New Approach on Accelerated-Dark-Matter-Electron Analysis in Semiconductors},
author = {Z. Y. Zhang and L. T. Yang and Q. Yue and K. J. Kang and Y. J. Li and H. P. An and Greeshma C. and J. P. Chang and Y. H. Chen and J. P. Cheng and W. H. Dai and Z. Deng and C. H. Fang and X. P. Geng and H. Gong and Q. J. Guo and T. Guo and X. Y. Guo and L. He and S. M. He and J. W. Hu and H. X. Huang and T. C. Huang and L. Jiang and S. Karmakar and H. B. Li and H. Y. Li and J. M. Li and J. Li and Q. Y. Li and R. M. J. Li and X. Q. Li and Y. L. Li and Y. F. Liang and B. Liao and F. K. Lin and S. T. Lin and J. X. Liu and S. K. Liu and Y. D. Liu and Y. Liu and Y. Y. Liu and H. Ma and Y. C. Mao and Q. Y. Nie and J. H. Ning and H. Pan and N. C. Qi and J. Ren and X. C. Ruan and M. K. Singh and T. X. Sun and C. J. Tang and Y. Tian and G. F. Wang and J. Z. Wang and L. Wang and Q. Wang and Y. F. Wang and Y. X. Wang and H. T. Wong and S. Y. Wu and Y. C. Wu and H. Y. Xing and R. Xu and Y. Xu and T. Xue and Y. L. Yan and N. Yi and C. X. Yu and H. J. Yu and J. F. Yue and M. Zeng and Z. Zeng and B. T. Zhang and F. S. Zhang and L. Zhang and Z. H. Zhang and J. Z. Zhao and K. K. Zhao and M. G. Zhao and J. F. Zhou and Z. Y. Zhou and J. J. Zhu},
journal= {arXiv preprint arXiv:2309.14982},
year = {2024}
}
Comments
7 pages, 4 figures. Version updated to match PRL version