降低氙探测器的低能阈值
天体物理仪器与方法
2010-12-01 v1 宇宙学与河外天体物理
高能物理 - 唯象学
摘要
我们证明，仅使用电离信号，可以将XENON10暗物质搜索数据中核反冲的能量阈值降低到约1 keV。换句话说，我们不需要有效事件包含主闪烁信号。因此，我们放弃了基于液氩中电离与闪烁比率的入射粒子类型鉴别。这种方法损害了探测器精确定位粒子相互作用z坐标的能力。然而，我们首次证明，仅基于电离信号就可以区分体事件和表面事件。
引用
@article{arxiv.1011.6439,
title = {Lowering the low-energy threshold of xenon detectors},
author = {P. Sorensen and J. Angle and E. Aprile and F. Arneodo and L. Baudis and A. Bernstein and A. Bolozdynya and P. Brusov and L. C. C. Coelho and C. E. Dahl and L. DeViveiros and A. D. Ferella and L. M. P. Fernandes and S. Fiorucci and R. J. Gaitskell and K. L. Giboni and R. Gomez and R. Hasty and L. Kastens and J. Kwong and J. A. M. Lopes and N. Madden and A. Manalaysay and A. Manzur and D. N. McKinsey and M. E. Monzani and K. Ni and U. Oberlack and J. Orboeck and G. Plante and R. Santorelli and J. M. F. dos Santos and P. Shagin and T. Shutt and S. Schulte and C. Winant and M. Yamashita},
journal= {arXiv preprint arXiv:1011.6439},
year = {2010}
}
备注
Conference proceedings from the Identification of Dark Matter 2010, Montpellier, France. To be published by SISSA as PoS(IDM2010)017