利用 LUX 2013 数据对镜像暗物质动力学混合的首次直接探测约束
高能物理 - 实验
2020-01-08 v2 高能物理 - 唯象学
摘要
我们给出了利用大型地下氙实验（LUX）2013 年采集数据（曝光量为 95 活日 × 118 kg）进行的镜像暗物质相互作用直接探测搜索结果。此处，液态氙中镜像电子散射率的计算考虑了被地球捕获的镜像暗物质所产生的屏蔽效应。同时还考虑了暗物质通量的年度与日间调制以及氙中的原子壳层效应。在未发现镜像暗物质相互作用诱导的电子反冲信号证据的情况下，我们在 0.1 至 0.6 keV 的局部镜像电子温度范围内对动力学混合参数给出了上限。该限制相较此前正电子素衰变实验约束有显著改进，并大幅缩减了该模型允许的参数空间。我们以 90% 置信水平排除了该模型下高于 0.3 keV 的镜像电子温度，并约束了此温度以下的动力学混合。
引用
@article{arxiv.1908.03479,
title = {First direct detection constraint on mirror dark matter kinetic mixing using LUX 2013 data},
author = {LUX Collaboration and D. S. Akerib and S. Alsum and H. M. Araújo and X. Bai and J. Balajthy and A. Baxter 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 L. de Viveiros and E. Druszkiewicz and A. Fan and S. Fiorucci and R. J. Gaitskell 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 E. V. Korolkova and S. Kravitz and V. A. Kudryavtsev and E. Leason 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 A. Nilima and K. O'Sullivan 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 R. 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 A. Vacheret 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 C. Zhang},
journal= {arXiv preprint arXiv:1908.03479},
year = {2020}
}