학술논문
First Search for Light Fermionic Dark Matter Absorption on Electrons Using Germanium Detector in CDEX-10 Experiment
Document Type
Working Paper
Author
Liu, J. X.; Yang, L. T.; Yue, Q.; Kang, K. J.; Li, Y. J.; An, H. P.; C., Greeshma; Chang, J. P.; Chen, Y. H.; Cheng, J. P.; Dai, W. H.; Deng, Z.; Fang, C. H.; Geng, X. P.; Gong, H.; Guo, Q. J.; Guo, T.; Guo, X. Y.; He, L.; He, J. R.; Hu, J. W.; Huang, H. X.; Huang, T. C.; Jiang, L.; Karmakar, 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, S. K.; Liu, Y. D.; Liu, Y.; Liu, Y. Y.; Ma, H.; Mao, Y. C.; Nie, Q. Y.; Pan, H.; Qi, N. C.; Ren, J.; Ruan, X. C.; Shen, M. B.; Singh, M. K.; Sun, T. X.; Sun, W. L.; Tang, C. J.; Tian, Y.; Wang, G. F.; Wang, J. Z.; Wang, L.; Wang, Q.; Wang, Y. F.; 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.; Zeng, M.; Zeng, Z.; Zhang, B. T.; Zhang, F. S.; Zhang, L.; Zhang, P.; Zhang, Z. H.; Zhang, Z. Y.; Zhao, J. Z.; Zhao, K. K.; Zhao, M. G.; Zhou, J. F.; Zhou, Z. Y.; Zhu, J. J.
Source
Subject
Language
Abstract
We present the first results of the search for sub-MeV fermionic dark matter absorbed by electron targets of Germanium using the 205.4~kg$\cdot$day data collected by the CDEX-10 experiment, with the analysis threshold of 160~eVee. No significant dark matter (DM) signals over the background are observed. Results are presented as limits on the cross section of DM--electron interaction. We present new constraints of cross section in the DM range of 0.1--10 keV/$c^2$ for vector and axial-vector interaction. The upper limit on the cross section is set to be $\rm 5.5\times10^{-46}~cm^2$ for vector interaction, and $\rm 1.8\times10^{-46}~cm^2$ for axial-vector interaction at DM mass of 5 keV/$c^2$.
Comment: 6 pages, 4 figures
Comment: 6 pages, 4 figures