完整LUX曝光量下的暗物质搜寻结果
宇宙学与河外天体物理
2017-01-18 v3 天体物理仪器与方法
高能物理 - 实验
仪器与探测器
摘要
我们报告了利用大型地下氙(LUX)实验3.35e4 kg·天曝光量对自旋无关弱相互作用大质量粒子(WIMP)-核子散射的约束。一个包含250 kg活性质量的双相氙时间投影室在美国南达科他州利德市桑福德地下研究设施运行。相对于我们之前的结果，对高质量WIMP的灵敏度提高了约四倍，此次搜寻未发现WIMP核反冲的证据。在WIMP质量为50 GeV/c^2时，自旋无关WIMP-核子散射截面大于2.2e-46 cm^2的值在90%置信水平下被排除。当与先前报告的LUX曝光量结合时，该排除限在50 GeV/c^2处加强至1.1e-46 cm^2。
引用
@article{arxiv.1608.07648,
title = {Results from a search for dark matter in the complete LUX exposure},
author = {D. S. Akerib and S. Alsum and H. M. Araújo and X. Bai and A. J. Bailey and J. Balajthy and P. Beltrame and E. P. Bernard and A. Bernstein and T. P. Biesiadzinski and E. M. Boulton and R. Bramante and P. Brás and D. Byram and S. B. Cahn and M. C. Carmona-Benitez and C. Chan and A. A. Chiller and C. Chiller and A. Currie and J. E. Cutter and T. J. R. Davison and A. Dobi and J. E. Y. Dobson and E. Druszkiewicz and B. N. Edwards and C. H. Faham and S. Fiorucci and R. J. Gaitskell and V. M. Gehman and C. Ghag and K. R. Gibson and M. G. D. Gilchriese and C. R. Hall and M. Hanhardt and S. J. Haselschwardt and S. A. Hertel and D. P. Hogan and M. Horn and D. Q. Huang and C. M. Ignarra and M. Ihm and R. G. Jacobsen and W. Ji and K. Kamdin and K. Kazkaz and D. Khaitan and R. Knoche and N. A. Larsen and C. Lee and B. G. Lenardo and K. T. Lesko and A. Lindote and M. I. Lopes and A. Manalaysay and R. L. Mannino and M. F. Marzioni and D. N. McKinsey and D. M. Mei and J. Mock and M. Moongweluwan and J. A. Morad and A. St. J. Murphy and C. Nehrkorn and H. N. Nelson and F. Neves and K. O`Sullivan and K. C. Oliver-Mallory and K. J. Palladino and E. K. Pease and P. Phelps and L. Reichhart and C. Rhyne and S. Shaw and T. A. Shutt and C. Silva and M. Solmaz and V. N. Solovov and P. Sorensen and S. Stephenson and T. J. Sumner and M. Szydagis and D. J. Taylor and W. C. Taylor and B. P. Tennyson and P. A. Terman and D. R. Tiedt and W. H. To and M. Tripathi and L. Tvrznikova and S. Uvarov and J. R. Verbus and R. C. Webb and J. T. White and T. J. Whitis and M. S. Witherell and F. L. H. Wolfs and J. Xu and K. Yazdani and S. K. Young and C. Zhang},
journal= {arXiv preprint arXiv:1608.07648},
year = {2017}
}
备注
This version includes a combined analysis with previously published LUX results, and matches the version published in PRL