用首批LUX-ZEPLIN数据探测标量WIMP-离子耦合

IF 5.4 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Communications Physics Pub Date : 2024-08-31 DOI:10.1038/s42005-024-01774-8

LZ Collaboration

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引用次数: 0

摘要

弱相互作用大质量粒子（WIMPs）可能与核子之间交换的虚拟先驱相互作用。在自旋无关的等标通道被抑制的模型中，考虑这种相互作用通道非常重要。我们利用 LUX-ZEPLIN 暗物质实验第一次科学运行的数据（其中包含在 5.5 吨的液态氙中的 60 个实时数据），报告了 WIMP 与先驱相互作用的搜索结果。我们没有观测到明显的过量，并将这种相互作用的 WIMP 质量上限设定为 1.5 × 10-46 cm2（置信度为 90%），即 33 GeV/c2。宇宙学证据表明，非发光暗物质占宇宙能量密度的 27%，而弱相互作用大质量粒子（WIMPs）是最受欢迎的候选粒子。在这里，作者搜索了与氙核子之间交换的虚拟粒子相互作用的类 WIMP 暗物质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Probing the scalar WIMP-pion coupling with the first LUX-ZEPLIN data

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Probing the scalar WIMP-pion coupling with the first LUX-ZEPLIN data

Weakly interacting massive particles (WIMPs) may interact with a virtual pion that is exchanged between nucleons. This interaction channel is important to consider in models where the spin-independent isoscalar channel is suppressed. Using data from the first science run of the LUX-ZEPLIN dark matter experiment, containing 60 live days of data in a 5.5 tonne fiducial mass of liquid xenon, we report the results on a search for WIMP-pion interactions. We observe no significant excess and set an upper limit of 1.5 × 10−46 cm2 at a 90% confidence level for a WIMP mass of 33 GeV/c2 for this interaction. Cosmological evidence suggests that nonluminous dark matter comprises 27% of the energy density of the universe, with weakly interacting massive particles (WIMPs) being a favoured candidate. Here, the authors perform a search for WIMP-like dark matter interacting with a virtual particle that is exchanges between xenon nucleons.

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来源期刊

Communications Physics Physics and Astronomy-General Physics and Astronomy

CiteScore

8.40

自引率

3.60%

发文量

276

审稿时长

13 weeks

期刊介绍： Communications Physics is an open access journal from Nature Research publishing high-quality research, reviews and commentary in all areas of the physical sciences. Research papers published by the journal represent significant advances bringing new insight to a specialized area of research in physics. We also aim to provide a community forum for issues of importance to all physicists, regardless of sub-discipline. The scope of the journal covers all areas of experimental, applied, fundamental, and interdisciplinary physical sciences. Primary research published in Communications Physics includes novel experimental results, new techniques or computational methods that may influence the work of others in the sub-discipline. We also consider submissions from adjacent research fields where the central advance of the study is of interest to physicists, for example material sciences, physical chemistry and technologies.