基于对撞机的探测器搜索地球内引力束缚暗物质产生的上行费米子的可行性
Feasibility of a collider-based detector search for upward-going fermions produced from gravitationally-bound dark matter within the Earth
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中文总结 AI 辅助
本文研究利用LHC级通用探测器搜索地球内暗物质湮灭产生的上行缪子，计算信号率与背景影响，预期限制显著优于现有结果。
中文摘要 AI 辅助
暗物质被理论认为会被地球引力捕获，并随后湮灭成暗光子。暗光子与标准模型光子发生动力学混合，这将允许暗光子在地球表面附近衰变为可观测的费米子对。我们研究了LHC级通用探测器观测来自这些暗物质模型产生的缪子的可行性和灵敏度。我们计算了在假设的通用探测器上的预期信号率，并考察了显著本底对灵敏度的影响。我们还考虑了此类探测器的实验效率，以确定所提出分析的预期限制。我们发现这些预期限制相较于现有限制有显著改进，强烈推动了对源自地球内束缚暗物质的上行缪子的搜索。
英文摘要
Dark matter is theorized to be gravitationally captured within the Earth and to subsequently annihilate into dark photons. The dark photons kinetically mix with the Standard Model photons which would allow the decay of the dark photon to pairs of observable fermions near Earth's surface. We examine the feasibility and sensitivity of an LHC-class general-purpose detector to observe muons originating from these dark matter models. We calculate the expected signal rates at a hypothetical general-purpose detector and examine the effect of significant backgrounds on sensitivity. We also consider experimental efficiencies of such a detector to determine expected limits for the proposed analysis. We find these expected limits constitute a significant improvement over existing ones, strongly motivating a search for upward-going muons stemming from dark matter bound within the Earth.
发表机构
- University of California Santa Barbara（加州大学圣塔芭芭拉分校）
- Siena University（锡耶纳大学）
- University of California Riverside（加州大学河滨分校）
机构由 AI 辅助整理，请以论文原文为准。
