The LUX-ZEPLIN (LZ) Dark Matter Search

LUX-ZEPLIN (LZ) 暗物质搜索

• 批准号: ST/M003655/1
• 负责人: Henrique Araujo
• 金额: $ 310.57万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FM003655%2F1
• 关键词: LUX; ZEPLIN; LZ; Dark; Matter

Direct dark matter experiments search for the extremely rare and very faint collisions expected to occur between the cold dark matter particles that are believed to permeate our galaxy and the nuclei of atoms in the active medium of a radiation detector. Weakly Interactive Massive Particles, or WIMPs, are hypothetical elementary particles weighing as little as a few protons or as much as several heavy nuclei; besides gravity, they would interact by the weak nuclear force, thereby providing a mechanics for their possible detection. The motivation to search for WIMP dark matter is strong, with theories that attempt to explain what lies beyond the Standard Model of Particle Physics providing very good candidates.The LUX-ZEPLIN (LZ) experiment will deploy a 7-tonne liquid xenon WIMP detector at the 4850-foot level of the Sanford Underground Research Facility (SURF) after a 3-year construction phase. In this most quiet of environments, shielded from cosmic rays and local backgrounds, LZ will then operate for at least 3 years to hopefully find a handful of tell-tale signs of WIMP interactions. LZ will be so sensitive that it will be limited only by backgrounds from astrophysical neutrinos, which provide a fundamental limit to these searches. However, before neutrinos set in, this experiment has the potential to finally shed light on the nature of dark matter.

直接的暗物质实验搜索预计将在辐射探测器的活性介质中渗透到我们的星系和原子核之间，预计将发生极为罕见且非常微弱的碰撞。虚弱的互动式巨型颗粒（或wimps）是假设的基本颗粒，重量只有几个质子或多个重核。除了重力外，它们还将通过弱核力量相互作用，从而提供了一种可能检测的力学。寻找WIMP暗物质的动机非常强烈，试图解释粒子物理学的标准模型提供了很好的候选者的理论。Lux-Zeplin（LZ）实验将在桑福德地下研究设施（SURF）的4850英尺水平上部署7吨液体Xenon WIMP探测器。在这种最安静的环境中，与宇宙射线和当地背景相比，LZ将至少运行3年，希望能找到一些wimp互动的明显迹象。 LZ将是如此敏感，以至于仅受天体中微子的背景限制，这些中微子为这些搜索提供了基本限制。但是，在中微子开始之前，该实验有可能最终阐明暗物质的性质。

项目成果

Simulations of Events for the LUX-ZEPLIN (LZ) Dark Matter Experiment

LUX-ZEPLIN (LZ) 暗物质实验的事件模拟

• DOI: 10.48550/arxiv.2001.09363
• 发表时间: 2020
• 期刊: arXiv e-prints
• 作者: Collaboration T

Background determination for the LUX-ZEPLIN dark matter experiment

LUX-ZEPLIN 暗物质实验的背景测定

• DOI: 10.1103/physrevd.108.012010
• 发表时间: 2023
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Aalbers J

Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

LZ 暗物质实验和未来稀有事件搜索中放射性纯钛的鉴定

• 发表时间: 2017
• 期刊: ArXiv e-prints
• 作者: Akerib D. S.

The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

• DOI: 10.1140/epjc/s10052-020-8420-x
• 发表时间: 2020-11-10
• 期刊: EUROPEAN PHYSICAL JOURNAL C
• 影响因子: 4.4
• 作者: Akerib, D. S.;Akerlof, C. W.;Zarzhitsky, P.
• 通讯作者: Zarzhitsky, P.

A next-generation liquid xenon observatory for dark matter and neutrino physics

• DOI: 10.1088/1361-6471/ac841a
• 发表时间: 2023-01-01
• 期刊: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
• 影响因子: 3.5
• 作者: Aalbers, J.;AbdusSalam, S. S.;Zupan, J.
• 通讯作者: Zupan, J.