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.

直接暗物质实验寻找预计会在渗透到我们星系的冷暗物质粒子与辐射探测器活动介质中的原子核之间发生的极其罕见和非常微弱的碰撞。弱相互作用大质量粒子（WIMP）是一种假设的基本粒子，其重量轻至几个质子，重至几个重核；除了重力之外，它们还会通过弱核力相互作用，从而为它们可能的探测提供了一种机制。寻找 WIMP 暗物质的动机很强烈，试图解释粒子物理标准模型之外的东西的理论提供了非常好的候选者。 LUX-ZEPLIN (LZ) 实验将在经过 3 年的建设阶段后，在桑福德地下研究设施 (SURF) 4850 英尺的高度部署一个 7 吨液氙 WIMP 探测器。在这个最安静的环境中，免受宇宙射线和当地背景的影响，LZ 将运行至少 3 年，以期找到一些 WIMP 相互作用的明显迹象。 LZ 将非常敏感，以至于它只会受到天体物理中微子背景的限制，这为这些搜索提供了根本限制。然而，在中微子出现之前，这个实验有可能最终揭示暗物质的本质。

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.

First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

• DOI: 10.1103/physrevlett.131.041002
• 发表时间: 2023-07-28
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Aalbers, J.;Akerib, D. S.;Zuckerman, A.
• 通讯作者: Zuckerman, A.

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.