惰性二重态暗物质模型与LUX-ZEPLIN高反冲事件
The Inert Doublet Model of Dark Matter and the LUX-ZEPLIN High-Recoil Event
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中文总结 AI 辅助
本文利用惰性二重态模型解释LUX-ZEPLIN实验观测到的高反冲事件，通过轮廓似然分析发现质量劈裂约369 keV的高质量暗物质参数区域。
中文摘要 AI 辅助
最近的LUX-ZEPLIN（LZ）搜索报告了一个接近$248~{\ m keV}$的核反冲事件。这样高能量的反冲事件可以用吸热非弹性暗物质散射来解释，这通常要求初始和最终暗物质态之间的质量劈裂约为几百keV。惰性二重态模型（IDM）通过$Z$介导的跃迁$H+N\ o A+N$为这一情景提供了自然实现。在本工作中，我们系统考察了在相关理论约束和现有实验限制下，这一解释能否在IDM中一致实现。我们对LZ事件进行了详细的轮廓似然分析，并发现了一个可行的高质量IDM区域，其轮廓最佳拟合点为$m_H=1080~{\ m GeV}$和$m_A-m_H=369~{\ m keV}$。
英文摘要
The recent LUX-ZEPLIN (LZ) search reported a nuclear-recoil event near $248~{\rm keV}$. Such a high-recoil event can be interpreted in terms of endothermic inelastic dark matter scattering, which typically requires a mass splitting of order a few hundred keV between the initial and final dark states. The inert doublet model (IDM) provides a natural realization of this scenario through the $Z$-mediated transition $H+N\to A+N$. In this work, we systematically examine whether this interpretation can be consistently realized in the IDM under the relevant theoretical constraints and existing experimental bounds. We perform a detailed profile-likelihood analysis of the LZ event, and find a viable high-mass IDM region with a profile best fit at $m_H=1080~{\rm GeV}$ and $m_A-m_H=369~{\rm keV}$.
发表机构
- Yantai University（烟台大学）
- Henan Normal University（河南师范大学）
机构由 AI 辅助整理，请以论文原文为准。
