苏丹超级低温暗物质搜索实验的结果。
Results from the Super Cryogenic Dark Matter Search Experiment at Soudan.
作者信息
Agnese R, Aramaki T, Arnquist I J, Baker W, Balakishiyeva D, Banik S, Barker D, Basu Thakur R, Bauer D A, Binder T, Bowles M A, Brink P L, Bunker R, Cabrera B, Caldwell D O, Calkins R, Cartaro C, Cerdeño D G, Chang Y, Chen Y, Cooley J, Cornell B, Cushman P, Daal M, Di Stefano P C F, Doughty T, Fascione E, Figueroa-Feliciano E, Fritts M, Gerbier G, Germond R, Ghaith M, Godfrey G L, Golwala S R, Hall J, Harris H R, Hong Z, Hoppe E W, Hsu L, Huber M E, Iyer V, Jardin D, Jastram A, Jena C, Kelsey M H, Kennedy A, Kubik A, Kurinsky N A, Loer B, Lopez Asamar E, Lukens P, MacDonell D, Mahapatra R, Mandic V, Mast N, Miller E H, Mirabolfathi N, Mohanty B, Morales Mendoza J D, Nelson J, Orrell J L, Oser S M, Page K, Page W A, Partridge R, Penalver Martinez M, Pepin M, Phipps A, Poudel S, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Reynolds T, Roberts A, Robinson A E, Rogers H E, Saab T, Sadoulet B, Sander J, Schneck K, Schnee R W, Scorza S, Senapati K, Serfass B, Speller D, Stein M, Street J, Tanaka H A, Toback D, Underwood R, Villano A N, von Krosigk B, Welliver B, Wilson J S, Wilson M J, Wright D H, Yellin S, Yen J J, Young B A, Zhang X, Zhao X
机构信息
Department of Physics, University of Florida, Gainesville Florida 32611, USA.
SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA.
出版信息
Phys Rev Lett. 2018 Feb 9;120(6):061802. doi: 10.1103/PhysRevLett.120.061802.
We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set. With an exposure of 1690 kg d, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP-nucleon cross section of 1.4×10^{-44} (1.0×10^{-44}) cm^{2} at 46 GeV/c^{2}. These results set the strongest limits for WIMP-germanium-nucleus interactions for masses >12 GeV/c^{2}.
我们报告了一项使用SuperCDMS苏丹数据集的大部分数据对弱相互作用大质量粒子（WIMP）进行盲搜索的结果。在曝光量为1690千克·日的情况下，观察到一个候选事件，与预期背景相符。该分析（结合之前的锗结果）在46 GeV/c²时对自旋无关的WIMP-核子截面设定了1.4×10⁻⁴⁴（1.0×10⁻⁴⁴）平方厘米的上限。这些结果为质量大于12 GeV/c²的WIMP-锗核相互作用设定了最强限制。
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