CDEX-50 暗物质实验的 WIMP 预期灵敏度
高能物理 - 实验
2024-08-08 v2 仪器与探测器
摘要
CDEX-50 是中国暗物质实验（CDEX）的下一代项目，旨在使用 50 kg 锗探测器阵列搜寻暗物质。本文对 CDEX-50 暗物质实验进行了全面总结，包括对潜在本底源的调查和本底模型的开发。基于基线模型，还给出了弱相互作用大质量粒子（WIMP）的预期灵敏度。在设定为 2--2.5 keVee 的感兴趣能区内的预期本底水平为 0.01 counts keVee kg day。在 90% 置信水平下，若曝光目标为 150 kgyear 且分析阈值为 160 eVee，对于质量为 5 GeV/c 的 WIMP，其自旋无关 WIMP-核子耦合的预期灵敏度估计可达到 5.1 10 cm 的截面。这一科学目标将对应于质量在 2.2--8 GeV/c 范围内 WIMP 的最灵敏结果。
引用
@article{arxiv.2309.01843,
title = {Projected WIMP sensitivity of the CDEX-50 dark matter experiment},
author = {X. P. Geng 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 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 Z. Y. 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:2309.01843},
year = {2024}
}
备注
12 pages, 11 figures. Version updated to match JCAP version