AI 中文总结
研究受\(^8\)B太阳中微子诱导的CE$\nu$NS启发，利用多吨级暗物质直接探测设施数据，将新粒子视为轻\(Z'\)媒介子，通过评估相关数据集对有效矢量耦合得出严格限制，缩小模型参数空间并展现对陶轻子味耦合的敏感性。
AI 中文摘要
\(X_{17}\)粒子被提出用于解释在阿童木实验中核跃迁期间电子-正电子对中观测到的不变质量异常。受最近对\(^8\)B太阳中微子诱导的相干弹性中微子-原子核散射（CE$\nu$NS）观测的启发，我们利用多吨级暗物质直接探测设施的数据对这个假设的玻色子进行了首次全面分析。我们将新粒子视为由自发破缺的\(U(1)'\)对称性产生的轻\(Z'\)媒介子，它对轻子具有矢量和轴矢量耦合。通过评估来自XENONnT、PandaX-4T和LUX-ZEPLIN的最新数据集，我们利用边缘化程序对有效矢量耦合得出了严格限制。我们的全局分析提供了有竞争力的约束，显著缩小了模型允许的参数空间，同时对陶轻子味耦合表现出明显的敏感性。
英文摘要
The $X_{17}$ particle has been proposed to explain the invariant mass anomalies observed in electron-positron pairs during nuclear transitions at the Atomki experiment. Motivated by recent observations of $^8$B solar neutrinos induced coherent elastic neutrino-nucleus scattering (CE$ν$NS), we present the first comprehensive analysis of the hypothetical boson using data from multi-ton dark matter direct detection facilities. We consider the new particle as a light $Z'$ mediator arising from a spontaneously broken $U(1)'$ symmetry, featuring both vector and axial-vector couplings to leptons. By evaluating the latest datasets from XENONnT, PandaX-4T, and LUX-ZEPLIN, we derive stringent limits on the effective vector coupling utilizing marginalization procedures. Our global analysis provides competitive constraints that meaningfully narrow the allowed parameter space of the model, while exhibiting a clear sensitivity to the tau-flavor coupling.
Comments19 pages, 10 figures and 1 table
