中国锦屏地下实验室 CDEX-10 实验中的奇异暗物质搜寻
高能物理 - 实验
2022-11-24 v2 高能物理 - 唯象学
摘要
利用中国锦屏地下实验室 CDEX-10 实验中 p 型点接触锗探测器获取的 205 kg·day 数据，开展了亚 GeV 质量区间奇异暗物质（DM）的搜寻。我们分析了新的低质量暗物质搜寻通道：中性流费米子暗物质吸收（χ+A→ν+A）与暗物质-核子 3→2 散射（χ+χ+A→φ+A），能量阈值为 160 eVee。未发现显著信号。因此，针对两种模型在亚 GeV 暗物质质量区间给出了暗物质-核子相互作用截面的新限制。对于费米子暗物质吸收，在暗物质质量 10 MeV/c² 处给出的截面限制为 2.5×10⁻⁴⁶ cm²（90% C.L.）。对于暗物质-核子 3→2 散射情形，针对无质量暗光子与束缚暗物质末态，限制分别延伸至暗物质质量 5 MeV/c² 与 14 MeV/c²。
引用
@article{arxiv.2209.00861,
title = {Exotic Dark Matter Search with CDEX-10 Experiment at China's Jinping Underground Laboratory},
author = {W. H. Dai and L. P. Jia and H. Ma 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 Z. Deng and C. H. Fang and X. P. Geng and H. Gong and Q. J. 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 H. T. Jia and X. Jiang and S. Karmakar and H. B. 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 S. K. Liu and Y. D. Liu and Y. Liu and Y. Y. Liu and Z. Z. Liu 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 Z. She and M. K. Singh and T. X. Sun and C. J. Tang and W. Y. Tang and Y. Tian and G. F. Wang and L. Wang and Q. Wang and Y. 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 L. T. Yang 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 K. K. Zhao and M. G. Zhao and J. F. Zhou and Z. Y. Zhou and J. J. Zhu},
journal= {arXiv preprint arXiv:2209.00861},
year = {2022}
}
备注
5 pages, 7 figures