CDMS II 首次五塔运行期的硅探测器结果
宇宙学与河外天体物理
2013-09-17 v3 高能物理 - 实验
摘要
我们报告了利用 CDMS II 实验的硅探测器搜索弱相互作用大质量粒子（WIMPs）的结果。本报告描述了对 2006-2007 年使用 CDMS II 全套探测器获取的首批数据的盲分析；此前已展示了使用该 exposures 中锗探测器的结果。在分析 cuts 之前，我们在 55.9 kg·天的曝光量中未观察到候选 WIMP 散射事件，预期背景约为 1.1 个事件。对于理想硅探测器和质量为 10 GeV/c²的 WIMP，此分析的曝光量等效于在 7-100 keV 反冲能量范围内的 10.3 kg·天。这些数据将 10 GeV/c² WIMP 的 WIMP-核子自旋无关截面上限设定为 1.7x10⁻⁴¹ cm²。这些数据排除了与近期低质量 WIMP 搜索相关的自旋无关 WIMP-核子弹性散射参数空间。
引用
@article{arxiv.1304.3706,
title = {Silicon detector results from the first five-tower run of CDMS II},
author = {CDMS Collaboration and R. Agnese and Z. Ahmed and A. J. Anderson and S. Arrenberg and D. Balakishiyeva and R. Basu Thakur and D. A. Bauer and A. Borgland and D. Brandt and P. L. Brink and T. Bruch and R. Bunker and B. Cabrera and D. O. Caldwell and D. G. Cerdeno and H. Chagani and J. Cooley and B. Cornell and C. H. Crewdson and P. Cushman and M. Daal and F. Dejongh and P. C. F. Di Stefano and E. do Couto e Silva and T. Doughty and L. Esteban and S. Fallows and E. Figueroa-Feliciano and J. Filippini and J. Fox and M. Fritts and G. L. Godfrey and S. R. Golwala and J. Hall and R. H. Harris and S. A. Hertel and T. Hofer and D. Holmgren and L. Hsu and M. E. Huber and A. Jastram and O. Kamaev and B. Kara and M. H. Kelsey and A. Kennedy and P. Kim and M. Kiveni and K. Koch and M. Kos and S. W. Leman and E. Lopez-Asamar and R. Mahapatra and V. Mandic and C. Martinez and K. A. McCarthy and N. Mirabolfathi and R. A. Moffatt and D. C. Moore and P. Nadeau and R. H. Nelson and K. Page and R. Partridge and M. Pepin and A. Phipps and K. Prasad and M. Pyle and H. Qiu and W. Rau and P. Redl and A. Reisetter and Y. Ricci and T. Saab and B. Sadoulet and J. Sander and K. Schneck and R. W. Schnee and S. Scorza and B. Serfass and B. Shank and D. Speller and K. M. Sundqvist and A. N. Villano and B. Welliver and D. H. Wright and S. Yellin and J. J. Yen and J. Yoo and B. A. Young and J. Zhan},
journal= {arXiv preprint arXiv:1304.3706},
year = {2013}
}
备注
5 pages, 4 figures; updated to match published version