Z Y Zhang, L T Yang, Q Yue, K J Kang, Y J Li, H P An, Greeshma C, J P Chang, Y H Chen, J P Cheng, W H Dai, Z Deng, C H Fang, X P Geng, H Gong, Q J Guo, T Guo, X Y Guo, L He, S M He, J W Hu, H X Huang, T C Huang, L Jiang, S Karmakar, H B Li, H Y Li, J M Li, J Li, Q Y Li, R M J Li, X Q Li, Y L Li, Y F Liang, B Liao, F K Lin, S T Lin, J X Liu, S K Liu, Y D Liu, Y Liu, Y Y Liu, H Ma, Y C Mao, Q Y Nie, J H Ning, H Pan, N C Qi, J Ren, X C Ruan, M K Singh, T X Sun, C J Tang, Y Tian, G F Wang, J Z Wang, L Wang, Q Wang, Y F Wang, Y X Wang, H T Wong, S Y Wu, Y C Wu, H Y Xing, R Xu, Y Xu, T Xue, Y L Yan, N Yi, C X Yu, H J Yu, J F Yue, M Zeng, Z Zeng, B T Zhang, F S Zhang, L Zhang, Z H Zhang, J Z Zhao, K K Zhao, M G Zhao, J F Zhou, Z Y Zhou, J J Zhu
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...
April 26, 2024: Physical Review Letters