학술논문
Probing Dark Matter Particles from Evaporating Primordial Black Holes via Electron Scattering in the CDEX-10 Experiment
Document Type
Working Paper
Author
Zhang, Z. H.; 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, S. M.; 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, 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, S. K.; Liu, Y. D.; Liu, Y.; Liu, Y. Y.; Ma, H.; Mao, Y. C.; Nie, Q. Y.; Ning, J. H.; Pan, H.; Qi, N. C.; Ren, J.; Ruan, X. C.; Singh, M. K.; Sun, T. X.; 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, S. Y.; Wu, Y. C.; Xing, H. Y.; Xu, R.; Xu, Y.; Xue, T.; Yan, Y. L.; Yi, N.; Yu, C. X.; Yu, H. J.; Yue, J. F.; Zeng, M.; Zeng, Z.; Zhang, B. T.; Zhang, F. S.; Zhang, L.; 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
Dark matter (DM) is a major constituent of the Universe. However, no definite evidence of DM particles (denoted as ``$\chi$") has been found in DM direct detection (DD) experiments to date. There is a novel concept that detecting $\chi$ from evaporating primordial black holes (PBHs). We search for $\chi$ emitted from PBHs by investigating their interaction with target electrons. The examined PBH masses range from 1$\times$10$^{15}$ to 7$\times$10$^{16}$ g under the current limits of PBH abundance $f_{PBH}$. Using 205.4 kg$\cdot$day data obtained from the CDEX-10 experiment conducted in the China Jinping Underground Laboratory, we exclude the $\chi$--electron ($\chi$--$e$) elastic-scattering cross section $\sigma_{\chi e} \sim 5\times10^{-29}$ cm$^2$ for $\chi$ with a mass $m_{\chi}\lesssim$ 0.1 keV from our results. If ($m_{\chi}$, $\sigma_{\chi e}$) can be determined in the future, DD experiments are expected to impose strong constraints on $f_{PBH}$ for large $M_{PBH}$s.
Comment: 8 pages, 6 figures
Comment: 8 pages, 6 figures