利用Majorana Demonstrator搜寻奇异暗物质
高能物理 - 实验
2024-07-30 v2 高能物理 - 唯象学
摘要
凭借优异的能量分辨率和超低水平放射性本底，Majorana Demonstrator中的高纯锗探测器能够搜寻数类奇异暗物质(DM)模型。在本工作中，我们报告了经由转化至活跃中微子的跃迁磁矩对keV尺度惰性中微子DM的新实验限制。我们报告了费米子暗物质吸收（）与亚GeV DM-核32散射（）的新限制，以及玻色子暗物质（类轴子粒子与暗光子）的新排除限。这些搜寻利用了Demonstrator在2016年5月至2019年11月间收集的37.5 kg·y曝光的(1–100) keV低能区，使用了一套表面暴露时间被严格控制的Ge富集探测器，从而实现了极低的宇宙射线活化水平。
引用
@article{arxiv.2206.10638,
title = {Exotic dark matter search with the Majorana Demonstrator},
author = {I. J. Arnquist and F. T. Avignone and A. S. Barabash and C. J. Barton and K. H. Bhimani and E. Blalock and B. Bos and M. Busch and M. Buuck and T. S. Caldwell and Y-D. Chan and C. D. Christofferson and P. -H. Chu and M. L. Clark and C. Cuesta and J. A. Detwiler and Yu. Efremenko and H. Ejiri and S. R. Elliott and G. K. Giovanetti and M. P. Green and J. Gruszko and I. S. Guinn and V. E. Guiseppe and C. R. Haufe and R. Henning and D. Hervas Aguilar and E. W. Hoppe and A. Hostiuc and M. F. Kidd and I. Kim and R. T. Kouzes and T. E. Lannen and A. Li and A. M. Lopez and J. M. López-Castaño and E. L. Martin and R. D. Martin and R. Massarczyk and S. J. Meijer and S. Mertens and T. K. Oli and G. Othman and L. S. Paudel and W. Pettus and A. W. P. Poon and D. C. Radford and A. L. Reine and K. Rielage and N. W. Ruof and D. C. Schaper and D. Tedeschi and R. L. Varner and S. Vasilyev and J. F. Wilkerson and C. Wiseman and W. Xu and C. -H. Yu and B. X. Zhu},
journal= {arXiv preprint arXiv:2206.10638},
year = {2024}
}
备注
7 pages, 6 figures