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H.E.S.S. 与直接探测搜索后的 SU(5) 中 Neutralino 暗物质

Neutralino Dark Matter in SU(5) after H.E.S.S. and Direct-Detection Searches

M. Adeel Ajaib, Fariha Nasir

arXiv 2609.19675首次发表:更新:

发表机构

Pennsylvania State University, Abington College(宾夕法尼亚州立大学阿灵顿学院)

机构由 AI 辅助整理,请以论文原文为准。

AI 中文总结

本研究在超对称 SU(5) 框架下,利用 H.E.S.S. 伽马射线线和直接探测数据约束 neutralino 暗物质,排除了多种基准模型,并揭示了 bino-wino 混合解与晕轮廓依赖,为参数空间判定提供修正与对撞机测试。

AI 中文摘要

我们研究了伽马射线线和直接探测搜索对具有非普适规范微子质量的超对称 SU(5) 中 neutralino 暗物质的影响。在 neutralino 构成全部晕暗物质的假设下,对于尖点和核化密度分布,1 TeV 的近纯 wino 基准模型基本上被 H.E.S.S. 线极限所排除。Higgsino 和 wino-Higgsino 基准模型被直接探测独立排除。相反,接近热饱和的 bino 基准模型结合了抑制的当前线发射和低于所显示实验极限的散射。混合 bino-wino 解说明了两种搜索的互补性以及线解释对银河晕轮廓的依赖性。我们将这些结果与 GUT 尺度规范微子层级以及 SU(5) 标量和 Higgs 边界条件联系起来。热学上欠丰的解需要额外的产生机制来实现全密度假设。将计算信号与已发表的电弱微子预测进行比较,我们确定了确定幸存参数空间所需的光谱相关修正和对撞机测试。

英文摘要

We examine the impact of gamma-ray line and direct-detection searches on neutralino dark matter in supersymmetric SU(5) with non-universal gaugino masses. Under the assumption that neutralinos constitute all halo dark matter, a nearly pure wino benchmark at 1 TeV is essentially excluded by the H.E.S.S. line limits for both cusped and cored density profiles. Higgsino and wino-Higgsino benchmarks are independently excluded by direct detection. In contrast, a bino benchmark near thermal saturation combines suppressed present-day line emission with scattering below the displayed experimental limits. Mixed bino-wino solutions illustrate the complementarity of the two searches and the dependence of the line interpretation on the Galactic halo profile. We relate these results to the GUT-scale gaugino hierarchy and the SU(5) scalar and Higgs boundary conditions. Thermally underabundant solutions require additional production to realize the full-density assumption. Comparing the calculated signals with published electroweakino predictions, we identify the spectrum-dependent corrections and collider tests needed to determine the surviving parameter space.

Comments20 pages, 7 Figures

论文原文

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