Technical Results from the Surface Run of the LUX Dark Matter Experiment

Technical Results from the Surface Run of the LUX Dark Matter Experiment
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DOI：
10.1016/j.astropartphys.2013.02.001
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发表时间：
2012-10
期刊：
Astroparticle Physics
影响因子：
3.5
通讯作者：
D. Akerib;X. Bai;E. Bernard;A. Bernstein;A. Bradley;D. Byram;S. Cahn;M. Carmona-Benitez;J. Chapman;T. Coffey;A. Dobi;E. M. Dragowsky;E. Druszkiewicz;B. Edwards;C. Faham;S. Fiorucci;R. Gaitskell;K. Gibson;M. Gilchriese;C. Hall;M. Hanhardt;M. Ihm;R. Jacobsen;L. Kastens;K. Kazkaz;R. Knoche;N. Larsen;C. Lee;K. Lesko;A. Lindote;M. Lopes;A. Lyashenko;D. Malling;R. Mannino;D. Mckinsey;D. Mei;J. Mock;M. Moongweluwan;M. Morii;H. Nelson;F. Neves;J. Nikkel;M. Pangilinan;K. Pech;P. Phelps;A. Rodionov;T. Shutt;C. Silva;W. Skulski;V. Solovov;P. Sorensen;T. Stiegler;M. Sweany;M. Szydagis;D. Taylor;M. Tripathi;S. Uvarov;J. Verbus;L. D. Viveiros;N. Walsh;R. Webb;J. White;M. Własenko;F. Wolfs;M. Woods;Chao Zhang
D. Akerib;X. Bai;E. Bernard;A. Bernstein;A. Bradley;D. Byram;S. Cahn;M. Carmona-Benitez;J. Chapman;T. Coffey;A. Dobi;E. M. Dragowsky;E. Druszkiewicz;B. Edwards;C. Faham;S. Fiorucci;R. Gaitskell;K. Gibson;M. Gilchriese;C. Hall;M. Hanhardt;M. Ihm;R. Jacobsen;L. Kastens;K. Kazkaz;R. Knoche;N. Larsen;C. Lee;K. Lesko;A. Lindote;M. Lopes;A. Lyashenko;D. Malling;R. Mannino;D. Mckinsey;D. Mei;J. Mock;M. Moongweluwan;M. Morii;H. Nelson;F. Neves;J. Nikkel;M. Pangilinan;K. Pech;P. Phelps;A. Rodionov;T. Shutt;C. Silva;W. Skulski;V. Solovov;P. Sorensen;T. Stiegler;M. Sweany;M. Szydagis;D. Taylor;M. Tripathi;S. Uvarov;J. Verbus;L. D. Viveiros;N. Walsh;R. Webb;J. White;M. Własenko;F. Wolfs;M. Woods;Chao Zhang
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
D. Akerib;X. Bai;E. Bernard;A. Bernstein;A. Bradley;D. Byram;S. Cahn;M. Carmona-Benitez;J. Chapman;T. Coffey;A. Dobi;E. M. Dragowsky;E. Druszkiewicz;B. Edwards;C. Faham;S. Fiorucci;R. Gaitskell;K. Gibson;M. Gilchriese;C. Hall;M. Hanhardt;M. Ihm;R. Jacobsen;L. Kastens;K. Kazkaz;R. Knoche;N. Larsen;C. Lee;K. Lesko;A. Lindote;M. Lopes;A. Lyashenko;D. Malling;R. Mannino;D. Mckinsey;D. Mei;J. Mock;M. Moongweluwan;M. Morii;H. Nelson;F. Neves;J. Nikkel;M. Pangilinan;K. Pech;P. Phelps;A. Rodionov;T. Shutt;C. Silva;W. Skulski;V. Solovov;P. Sorensen;T. Stiegler;M. Sweany;M. Szydagis;D. Taylor;M. Tripathi;S. Uvarov;J. Verbus;L. D. Viveiros;N. Walsh;R. Webb;J. White;M. Własenko;F. Wolfs;M. Woods;Chao Zhang

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我们展示了位于美国南达科他州利德市桑福德地下研究设施的大型地下氙气 (LUX) 实验为期三个月的地上调试运行结果。 LUX 是一款 370 公斤液态氙探测器，将搜索弱相互作用大质量粒子 (WIMP) 形式的冷暗物质。调试运行是将探测器浸入水箱中进行，验证了地下部署准备过程中各个子系统的集成。利用收集到的数据，我们报告了出色的光收集特性，在 WIMP 目标中心测量的情况下，在没有施加电场的情况下，在 662 keV 电子反冲下实现了 8.4 个光电子/keV。我们还在各种内部和外部来源的相对高能量相互作用中发现了良好的能量和位置分辨率。最后，我们使用调试数据来调整模拟的光学特性，并报告与自旋无关的 WIMP 核子散射的更新灵敏度预测。
We present the results of the three-month above-ground commissioning run of the Large Underground Xenon (LUX) experiment at the Sanford Underground Research Facility located in Lead, South Dakota, USA. LUX is a 370 kg liquid xenon detector that will search for cold dark matter in the form of Weakly Interacting Massive Particles (WIMPs). The commissioning run, conducted with the detector immersed in a water tank, validated the integration of the various sub-systems in preparation of the underground deployment. Using the data collected, we report excellent light collection properties, achieving 8.4 photoelectrons per keV for 662 keV electron recoils without an applied electric field, measured in the center of the WIMP target. We also find good energy and position resolution in relatively high-energy interactions from a variety of internal and external sources. Finally, we have used the commissioning data to tune the optical properties of our simulation and report updated sensitivity projections for spin-independent WIMP-nucleon scattering.