中国锦屏地下实验室 CDEX-1 实验关于低质量 WIMP 的首批结果
高能物理 - 实验
2013-09-17 v2 宇宙学与河外天体物理
仪器与探测器
摘要
中国暗物质实验 (CDEX) 合作组报告了来自低质量弱相互作用大质量粒子 (WIMP) 暗物质的首个实验限制，数据取自中国锦屏地下实验室，该处岩石覆盖层超过 2400 米，使用的是 994 g p 型点接触锗探测器，累积曝光量为 14.6 kg-day。实现的能量阈值为 400 eVee。根据 14.6 kg-day 的有效数据，在区分体信号与表面背景之前，我们在 90% 置信水平下对 7 GeV 质量的 WIMP 的自旋无关截面给出了 的限制。
引用
@article{arxiv.1306.4135,
title = {First results on low-mass WIMP from the CDEX-1 experiment at the China Jinping underground Laboratory},
author = {W. Zhao and Q. Yue and K. J. Kang and J. P. Cheng and Y. J. Li and S. T. Lin and Y. Bai and Y. Bi and J. P. Chang and N. Chen and N. Chen and Q. H. Chen and Y. H. Chen and Y. C. Chuang and Z. Deng and C. Du and Q. Du and H. Gong and X. Q. Hao and H. J. He and Q. J. He and X. H. Hu and H. X. Huang and T. R. Huang and H. Jiang and H. B. Li and J. M. Li and J. Li and J. Li and X. Li and X. Y. Li and Y. L. Li and H. Y. Liao and F. K. Lin and S. K. Liu and L. C. Lv and H. Ma and S. J. Mao and J. Q. Qin and J. Ren and J. Ren and X. C. Ruan and M. B. Shen and L. Singh and M. K. Singh and A. K. Soma and J. Su and C. J. Tang and C. H. Tseng and J. M. Wang and L. Wang and Q. Wang and H. T. Wong and S. Y. Wu and W. Wu and Y. C. Wu and Y. C. Wu and Z. Z. Xianyu and H. Y. Xing and Y. Xu and X. J. Xu and T. Xue and L. T. Yang and S. W. Yang and N. Yi and C. X. Yu and H. Yu and X. Z. Yu and X. H. Zeng and Z. Zeng and L. Zhang and Y. H. Zhang and M. G. Zhao and S. N. Zhong and Z. Y. Zhou and J. J. Zhu and W. B. Zhu and X. Z. Zhu and Z. H. Zhu},
journal= {arXiv preprint arXiv:1306.4135},
year = {2013}
}
备注
5 pages, 5 figures