Measurement of the Muon Flux at the Sanford Underground Research Facility with the LUX-ZEPLIN Dark Matter Detector
SLAC National Accelerator Laboratory(SLAC国家加速器实验室);Kavli Institute for Particle Astrophysics and Cosmology, Stanford University(斯坦福大学卡弗里粒子天体物理与宇宙学研究所);University College London(伦敦大学学院);Brown University(布朗大学);University of California, Santa Barbara(加利福尼亚大学圣巴巴拉分校);University of Zurich(苏黎世大学);Imperial College London(帝国理工学院);STFC Rutherford Appleton Laboratory(STFC卢瑟福·阿普尔顿实验室);University of Maryland(马里兰大学)
D. S. Akerib, A. K. Al Musalhi, F. Alder, B. J. Almquist, C. S. Amarasinghe, A. Ames, T. J. Anderson, N. Angelides, H. M. Araújo, J. E. Armstrong, M. Arthurs, A… 展开作者
D. S. Akerib, A. K. Al Musalhi, F. Alder, B. J. Almquist, C. S. Amarasinghe, A. Ames, T. J. Anderson, N. Angelides, H. M. Araújo, J. E. Armstrong, M. Arthurs, A. Baker, S. Balashov, J. Bang, J. W. Bargemann, E. E. Barillier, K. Beattie, A. Bhatti, T. P. Biesiadzinski, H. J. Birch, E. Bishop, G. M. Blockinger, C. A. J. Brew, P. Brás, S. Burdin, M. C. Carmona-Benitez, M. Carter, A. Chawla, H. Chen, Y. T. Chin, N. I. Chott, S. Contreras, M. V. Converse, R. Coronel, A. Cottle, G. Cox, D. Curran, C. E. Dahl, I. Darlington, S. Dave, A. David, J. Delgaudio, S. Dey, L. de Viveiros, L. Di Felice, C. Ding, J. E. Y. Dobson, E. Druszkiewicz, S. Dubey, C. L. Dunbar, S. R. Eriksen, N. M. Fearon, N. Fieldhouse, S. Fiorucci, H. Flaecher, E. D. Fraser, T. M. A. Fruth, P. W. Gaemers, R. J. Gaitskell, A. Geffre, J. Genovesi, C. Ghag, J. Ghamsari, A. Ghosh, R. Gibbons, S. Gokhale, J. Green, M. G. D. van der Grinten, J. J. Haiston, C. R. Hall, T. Hall, R. H. Hampp, S. J. Haselschwardt, M. A. Hernandez, S. A. Hertel, G. J. Homenides, M. Horn, D. Q. Huang, D. Hunt, R. S. James, E. Jacquet, K. Jenkins, A. C. Kaboth, A. C. Kamaha, M. K. Kannichankandy, D. Khaitan, A. Khazov, J. Kim, Y. D. Kim, D. Kodroff, E. V. Korolkova, H. Kraus, S. Kravitz, L. Kreczko, V. A. Kudryavtsev, C. Lawes, D. S. Leonard, K. T. Lesko, C. Levy, J. Lin, A. Lindote, W. H. Lippincott, J. Long, M. I. Lopes, W. Lorenzon, C. Lu, S. Luitz, V. Mahajan, P. A. Majewski, A. Manalaysay, R. L. Mannino, R. J. Matheson, C. Maupin, M. E. McCarthy, D. N. McKinsey, J. McLaughlin, J. B. Mclaughlin, R. McMonigle, B. Mitra, E. Mizrachi, M. E. Monzani, K. Morå, E. Morrison, B. J. Mount, M. Murdy, A. St. J. Murphy, H. N. Nelson, F. Neves, A. Nguyen, C. L. O'Brien, F. H. O'Shea, I. Olcina, K. C. Oliver-Mallory, J. Orpwood, K. Y. Oyulmaz, K. J. Palladino, N. J. Pannifer, N. Parveen, S. J. Patton, B. Penning, G. Pereira, E. Perry, T. Pershing, A. Piepke, S. S. Poudel, Y. Qie, J. Reichenbacher, C. A. Rhyne, G. R. C. Rischbieter, E. Ritchey, H. S. Riyat, R. Rosero, N. J. Rowe, T. Rushton, D. Rynders, S. Saltão, D. Santone, I. Sargeant, A. B. M. R. Sazzad, R. W. Schnee, G. Sehr, B. Shafer, S. Shaw, W. Sherman, K. Shi, T. Shutt, C. Silva, G. Sinev, J. Siniscalco, A. M. Slivar, R. Smith, V. N. Solovov, P. Sorensen, J. Soria, T. Stenhouse, T. J. Sumner, A. Swain, M. Szydagis, D. R. Tiedt, M. Timalsina, D. R. Tovey, J. Tranter, M. Trask, K. Trengove, M. Tripathi, A. Usón, A. C. Vaitkus, O. Valentino, V. Velan, A. Wang, J. J. Wang, Y. Wang, L. Weeldreyer, T. J. Whitis, K. Wild, M. Williams, J. Winnicki, L. Wolf, F. L. H. Wolfs, S. Woodford, D. Woodward, C. J. Wright, Q. Xia, J. Xu, Y. Xu, M. Yeh, D. Yeum, J. Young, W. Zha, H. Zhang, T. Zhang, Y. Zhou
High-energy cosmic-ray muons reaching deep underground laboratories can cause events in detectors that mimic signals expected from dark matter particles, neutrinos, or rare decays. Knowledge of the muon flux and energy spectrum is important for evaluating the background rate caused by muons and their secondaries. In this paper, we report the measurement of the cosmic-ray muon flux in the Davis Campus of the Sanford Underground Research Facility with the LUX-ZEPLIN detector. Using 366.4~days of exposure, the muon rate through the detector was measured as $10.94\pm0.17_\textrm{stat.}~\textrm{day}^{-1}$ with energy thresholds of 20~MeV in the inner xenon detector and 8 MeV in the outer liquid scintillator detector. This rate corresponds to a muon flux of $(5.09\pm0.08_\textrm{stat.}\pm0.10_\textrm{sys.})\times10^{-9}~\textrm{cm}^{-2}\textrm{s}^{-1}$ in the Davis Cavern.
Interpreting the High-Recoil LUX-ZEPLIN Event with Bino-/Singlino-like and Higgsino Dark Matter
Argonne National Laboratory(阿贡国家实验室);University of Cincinnati(辛辛那提大学);Johannes Gutenberg University(约翰内斯·古腾堡大学);University of Chicago(芝加哥大学);Perimeter Institute for Theoretical Physics(理论物理珀米特研究所)
Inelastic Self-interacting Dark Matter and LUX-ZEPLIN 248 keV Event in a Dirac Modular Inverse Seesaw
Salbari College(萨尔巴里学院);University of Silesia(西里西亚大学);Indian Institute of Technology Goa(印度理工学院果阿分校);Indian Institute of Technology Hyderabad(印度理工学院海德拉巴分校)
A scalar-extended ${\rm U(1)_{L_μ-L_τ}}$ explanation of the LUX-ZEPLIN 248 keV excess
Institute of Physics(印度物理研究所);Homi Bhabha National Institute, BARC Training School Complex(霍米·巴巴国立学院,BARC培训学院);Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3(法国格勒诺布尔阿尔卑斯大学亚原子物理与宇宙学实验室)
Kaluza--Klein Dark-Photon Mediation of Inelastic Dark Matter at LUX-ZEPLIN
Center for Fundamental Physics, School of Artificial Intelligence, Hubei Polytechnic University(湖北理工学院人工智能学院基础物理中心);Physics Department, Theory Division, University of Ioannina(伊奥尼纳大学理论部物理系)
Precision measurement of positron decay modes of Xe-125 in the LUX-ZEPLIN experiment
SLAC National Accelerator Laboratory(SLAC国家加速器实验室);Kavli Institute for Particle Astrophysics and Cosmology, Stanford University(斯坦福大学卡弗里粒子天体物理与宇宙学研究所);University College London (UCL)(伦敦大学学院);Brown University(布朗大学);University of California, Santa Barbara(加州大学圣塔芭芭拉分校);University of Zurich(苏黎世大学);Imperial College London(帝国理工学院);STFC Rutherford Appleton Laboratory (RAL)(STC鲁瑟福阿普尔顿实验室);University of Maryland(马里兰大学)
Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment
SLAC National Accelerator Laboratory(斯坦福直线加速器中心);Kavli Institute for Particle Astrophysics and Cosmology, Stanford University(斯坦福大学卡弗里粒子天体物理与宇宙学研究所);University College London (UCL)(伦敦大学学院);Brown University(布朗大学);University of California, Santa Barbara(加州大学圣塔芭芭拉分校);Lawrence Berkeley National Laboratory (LBNL)(劳伦斯伯克利国家实验室);University of Zurich(苏黎世大学);Imperial College London(帝国理工学院);STFC Rutherford Appleton Laboratory (RAL)(英国科学与技术设施委员会卢瑟福阿普尔顿实验室);University of Maryland(马里兰大学);King’s College London(伦敦国王学院)
Searches for Light Dark Matter and Evidence of Coherent Elastic Neutrino-Nucleus Scattering of Solar Neutrinos with the LUX-ZEPLIN (LZ) Experiment
SLAC National Accelerator Laboratory(斯坦福直线加速器中心);Kavli Institute for Particle Astrophysics and Cosmology, Stanford University(卡弗里粒子天体物理与宇宙学研究所,斯坦福大学);University College London (UCL)(伦敦大学学院);Brown University(布朗大学);University of California, Santa Barbara(加州大学圣塔芭芭拉分校);University of Zurich(苏黎世大学);Imperial College London(帝国理工学院);STFC Rutherford Appleton Laboratory (RAL)(STFC鲁瑟福阿普尔顿实验室);University of Maryland(马里兰大学)
Study of few-electron backgrounds in the LUX-ZEPLIN detector
SLAC National Accelerator Laboratory(斯坦福直线加速器中心);Kavli Institute for Particle Astrophysics and Cosmology, Stanford University(斯坦福大学卡弗里粒子天体物理与宇宙学研究所);University College London (UCL)(伦敦大学学院);Brown University(布朗大学);University of California, Santa Barbara(加州大学圣塔芭芭拉分校);Imperial College London(帝国理工学院);STFC Rutherford Appleton Laboratory (RAL)(英国科学与技术设施委员会卢瑟福阿普尔顿实验室);University of Maryland(马里兰大学)
A Detailed Look at the First Results from the Large Underground Xenon (LUX) Dark Matter Experiment
LUX是世界上最大的双相氙时间投影室,基准目标质量为118公斤,迄今为止的曝光量为10,091公斤-天,是目前最灵敏的直接暗物质搜索实验。自旋无关的WIMP-核子散射截面的初始零结果限制于2013年10月发布,主要闪烁阈值为2 phe,大约为LUX的3 keVnr。该探测器已部署在南达科他州Lead的Sanford地下研究设施(SURF),是第一个实现WIMP横截面低于$10^{-45}$ cm $^{2}$的实验。在这里,我们提出了一个更深入的讨论,以更好地了解核反冲光和电荷产率的新的能量尺度,和校准源,包括新的内部氚源。我们发现LUX数据与其他结果的低质量WIMP信号解释相冲突。
Results from a search for dark matter in the complete LUX exposure
我们报告的限制自旋独立的弱相互作用大质量粒子(WIMP)核子散射使用3.35e4千克-天的大型地下氙(LUX)实验曝光。在美国南达科他州Lead的Sanford地下研究设施中运行着一个有效质量为250 kg的双相氙时间投影室。相对于我们以前的结果,对高WIMP质量的灵敏度提高了大约四倍,这次搜索没有得到WIMP核反冲的证据。在WIMP质量为50 GeV/c^2时,在90%的置信水平下,排除了大于2.2 e-46 cm ^2的WIMP-核子自旋无关截面。当与先前报道的LUX暴露相结合时,这种排斥在50 GeV/c^2处增强到1.1 e-46 cm ^2。
我们描述的设计和组装的LUX-ZEPLIN实验,直接探测宇宙WIMP暗物质粒子的搜索。实验的核心是一个对低能核反冲敏感的大型液体氙时间投影室。背景的拒绝是由一个反渗透探测器和一个液体闪烁体外部探测器装有有效的中子捕获和标记钆增强。LZ位于美国南达科他州Lead的Sanford Underground Research Facility的4850'层的戴维斯洞穴中。我们描述了实验的主要子系统及其关键设计特点和要求。
Inelastic Dark Matter and High-Energy Recoil Signatures in LZ
Department of Physics, Tsinghua University(清华大学物理系);Center for High Energy Physics, Peking University(北京大学高能物理中心);Department of Physics and Jockey Club Institute for Advanced Study, The Hong Kong University of Science and Technology(香港科技大学物理系及赛马会高等研究院)