XENON100 100个有效天数数据的暗物质结果
宇宙学与河外天体物理
2015-03-19 v3 高能物理 - 实验
摘要
我们展示了利用XENON100探测器直接搜寻暗物质的结果，该探测器安装于意大利INFN格兰萨索国家实验室地下。XENON100是一个两相时间投影室，包含62千克液氙靶。三维相互作用顶点重建精度达到毫米级，允许仅选择最内层的48千克作为超低本底基准靶。在2010年1月至6月期间获取的100.9个有效天数数据中，未发现暗物质证据。在预先定义的信号区域内观测到三个候选事件，预期本底为1.8 +/- 0.6个事件。这给出了当今对暗物质相互作用最严格的限制，在90%置信度下，对于质量为50 GeV/c^2的WIMP，排除了自旋无关弹性WIMP-核子散射截面高于7.0x10^-45 cm^2的区域。
引用
@article{arxiv.1104.2549,
title = {Dark Matter Results from 100 Live Days of XENON100 Data},
author = {XENON100 Collaboration and E. Aprile and K. Arisaka and F. Arneodo and A. Askin and L. Baudis and A. Behrens and K. Bokeloh and E. Brown and T. Bruch and G. Bruno and J. M. R. Cardoso and W. -T. Chen and B. Choi and D. Cline and E. Duchovni and S. Fattori and A. D. Ferella and F. Gao and K. -L. Giboni and E. Gross and A. Kish and C. W. Lam and J. Lamblin and R. F. Lang and C. Levy and K. E. Lim and Q. Lin and S. Lindemann and M. Lindner and J. A. M. Lopes and K. Lung and T. Marrodan Undagoitia and Y. Mei and A. J. Melgarejo Fernandez and K. Ni and U. Oberlack and S. E. A. Orrigo and E. Pantic and R. Persiani and G. Plante and A. C. C. Ribeiro and R. Santorelli and J. M. F. dos Santos and G. Sartorelli and M. Schumann and M. Selvi and P. Shagin and H. Simgen and A. Teymourian and D. Thers and O. Vitells and H. Wang and M. Weber and C. Weinheimer},
journal= {arXiv preprint arXiv:1104.2549},
year = {2015}
}
备注
5 pages, 5 figures; matches accepted version