利用 2013 年 LUX 数据搜寻亚 GeV 暗物质的成果
宇宙学与河外天体物理
2019-10-18 v3 天体物理仪器与方法
高能物理 - 实验
仪器与探测器
摘要
亚 GeV 质量暗物质的粒子与原子核的散射，由于核反冲过程中的能量转移小于典型探测器阈值，难以使用基于液氙的暗物质搜寻装置探测。然而，树级暗物质-原子核散射图可伴随同时发射一个轫致光子或所谓的“Migdal”电子。这些在比相应核反冲更高的能量处为实验信号提供了电子反冲成分。该信号的存在使得液氙探测器能在分析中同时使用闪烁与电离信号，而核反冲信号原本不可见。我们利用大型地下氙（LUX）实验 2013 年数据的 1.4×10^4 kg·day 搜寻曝光量，针对四类不同的媒介子，报告了质量 0.4-5 GeV/c^2 的暗物质粒子的自旋无关暗物质-核子散射的限制。该分析将基于液氙的暗物质搜寻装置所能触及的暗物质质量下限拓展到了比以往更低的水平。
引用
@article{arxiv.1811.11241,
title = {Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data},
author = {D. S. Akerib and S. Alsum and H. M. Araújo and X. Bai and J. Balajthy and P. Beltrame and E. P. Bernard and A. Bernstein and T. P. Biesiadzinski and E. M. Boulton and B. Boxer and P. Brás and S. Burdin and D. Byram and M. C. Carmona-Benitez and C. Chan and J. E. Cutter and T. J. R. Davison and E. Druszkiewicz and S. R. Fallon and A. Fan and S. Fiorucci and R. J. Gaitskell and J. Genovesi and C. Ghag and M. G. D. Gilchriese and C. Gwilliam and C. R. Hall and S. J. Haselschwardt and S. A. Hertel and D. P. Hogan and M. Horn and D. Q. Huang and C. M. Ignarra and R. G. Jacobsen and O. Jahangir and W. Ji and K. Kamdin and K. Kazkaz and D. Khaitan and R. Knoche and E. V. Korolkova and S. Kravitz and V. A. Kudryavtsev and B. G. Lenardo and K. T. Lesko and J. Liao and J. Lin and A. Lindote and M. I. Lopes and A. Manalaysay and R. L. Mannino and N. Marangou and M. F. Marzioni and D. N. McKinsey and D. -M. Mei and M. Moongweluwan and J. A. Morad and A. St. J. Murphy and A. Naylor and C. Nehrkorn and H. N. Nelson and F. Neves and K. C. Oliver-Mallory and K. J. Palladino and E. K. Pease and Q. Riffard and G. R. C. Rischbieter and C. Rhyne and P. Rossiter and S. Shaw and T. A. Shutt and C. Silva and M. Solmaz and V. N. Solovov and P. Sorensen and T. J. Sumner and M. Szydagis and D. J. Taylor and W. C. Taylor and B. P. Tennyson and P. A. Terman and D. R. Tiedt and W. H. To and M. Tripathi and L. Tvrznikova and U. Utku and S. Uvarov and V. Velan and R. C. Webb and J. T. White and T. J. Whitis and M. S. Witherell and F. L. H. Wolfs and D. Woodward and J. Xu and K. Yazdani and C. Zhang},
journal= {arXiv preprint arXiv:1811.11241},
year = {2019}
}