LUX暗物质探测器中的放射性本底和μ子诱导本底
天体物理仪器与方法
2014-08-25 v1 仪器与探测器
摘要
大型地下氙(LUX)暗物质实验旨在探测弱相互作用大质量粒子(WIMPs)产生的稀有低能相互作用。LUX探测器中的放射性本底已被测量并与蒙特卡洛模拟进行了比较。LUX高能数据的测量为背景模型中所有本底源提供了直接约束。来自背景模型的85.3天WIMP搜索运行的预期本底率为~events~keV~kg~day（118~kg有效体积内）。观测到的本底率为~events~keV~kg~day，与模型预测一致。给出了后续一年运行中放射性本底的预期。
引用
@article{arxiv.1403.1299,
title = {Radiogenic and Muon-Induced Backgrounds in the LUX Dark Matter Detector},
author = {D. S. Akerib and H. M. Araujo and X. Bai and A. J. Bailey and J. Balajthy and E. Bernard and A. Bernstein and A. Bradley and D. Byram and S. B. Cahn and M. C. Carmona-Benitez and C. Chan and J. J. Chapman and A. A. Chiller and C. Chiller and T. Coffey and A. Currie and L. de Viveiros and A. Dobi and J. Dobson and E. Druszkiewicz and B. Edwards and C. H. Faham and S. Fiorucci and C. Flores and R. J. Gaitskell and V. M. Gehman and C. Ghag and K. R. Gibson and M. G. D. Gilchriese and C. Hall and S. A. Hertel and M. Horn and D. Q. Huang and M. Ihm and R. G. Jacobsen and K. Kazkaz and R. Knoche and N. A. Larsen and C. Lee and A. Lindote and M. I. Lopes and D. C. Malling and R. Mannino and D. N. McKinsey and D. -M. Mei and J. Mock and M. Moongweluwan and J. Morad and A. St. J. Murphy and C. Nehrkorn and H. Nelson and F. Neves and R. A. Ott and M. Pangilinan and P. D. Parker and E. K. Pease and K. Pech and P. Phelps and L. Reichhart and T. Shutt and C. Silva and V. N. Solovov and P. Sorensen and K. O'Sullivan and T. J. Sumner and M. Szydagis and D. Taylor and B. Tennyson and D. R. Tiedt and M. Tripathi and S. Uvarov and J. R. Verbus and N. Walsh and R. Webb and J. T. White and M. S. Witherell and F. L. H. Wolfs and M. Woods and C. Zhang},
journal= {arXiv preprint arXiv:1403.1299},
year = {2014}
}
备注
18 pages, 12 figures / 17 images, submitted to Astropart. Phys