利用 EDELWEISS-II 热 - 电离探测器搜寻低质量 WIMP
宇宙学与河外天体物理
2012-09-28 v2 高能物理 - 实验
仪器与探测器
摘要
我们报告了利用 EDELWEISS 在 2009-2010 年间收集的数据,对低能( keV)WIMP 诱导核反冲的搜寻结果。该实验使用了四个配备热传感器和特定电极设计(ID)的锗探测器,该设计能有效剔除多种背景源。数据显示,在 113 kg.d 的曝光量后,没有发现可归因于 WIMP 弹性散射的低能核反冲指数分布证据。对于质量为 10 GeV 的 WIMP,在 WIMP 搜寻区域观测到一个事件,导致自旋无关 WIMP-核子散射截面的 90% 置信度上限为 pb,这一结果限制了与 CoGeNT、DAMA 和 CRESST 实验报告发现相关的参数空间。
引用
@article{arxiv.1207.1815,
title = {A search for low-mass WIMPs with EDELWEISS-II heat-and-ionization detectors},
author = {EDELWEISS Collaboration and E. Armengaud and C. Augier and A. Benoît and L. Bergé and T. Bergmann and J. Blümer and A. Broniatowski and V. Brudanin and B. Censier and M. Chapellier and F. Charlieux and F. Couëdo and P. Coulter and G. A. Cox and J. Domange and A. A. Drillien and L. Dumoulin and K. Eitel and D. Filosofov and N. Fourches and J. Gascon and G. Gerbier and J. Gironnet and M. Gros and G. Heuermann and S. Henry and S. Hervé and A. Juillard and M. Kleifges and H. Kluck and V. Kozlov and H. Kraus and V. A. Kudryavtsev and H. Le Sueur and P. Loaiza and S. Marnieros and A. Menshikov and X. -F. Navick and C. Nones and E. Olivieri and P. Pari and B. Paul and M. Robinson and S. Rozov and V. Sanglard and B. Schmidt and B. Siebenborn and D. Tcherniakhovski and A. S. Torrento-Coello and L. Vagneron and R. J. Walker and M. Weber and E. Yakushev and X. Zhang},
journal= {arXiv preprint arXiv:1207.1815},
year = {2012}
}
备注
PRD rapid communication accepted