发表机构
Leinweber Institute for Theoretical Physics, University of California, Berkeley; Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo; Ernest Orlando Lawrence Berkeley National Laboratory（莱因韦伯理论物理研究所，加州大学伯克利分校; 东京大学宇宙物理与数学 Kavli 研究所（WPI）; 欧内斯特·奥兰多·劳伦斯伯克利国家实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出重惰性二重态暗物质（11.3–20.3 TeV）可同时解释LZ直接探测信号并满足IceCube约束，通过大耦合实现正确湮灭截面，且电弱精密测量仍符合实验限值。
AI 中文摘要
我们证明惰性二重态暗物质可以调和所谓的LZ直接探测信号与IceCube约束。偏好的暗物质质量为11.3–20.3 TeV，比标准higgsino目标重一个数量级。在高质量下，较小的数密度可以再现LZ事件，因为对速度的指数敏感性，同时由于更高的下落速度，抑制了太阳中的俘获率。另一方面，高质量需要惰性二重态与希格斯玻色子之间的大耦合，以获得正确的冻结退耦湮灭截面。在朗道极点之下存在约一个数量级的有效范围，超出该范围需要紫外完备化。尽管耦合较大，电弱精密可观测量仍低于实验限值。
英文摘要
We show that the inert doublet dark matter can reconcile the purported LZ direct detection signal and IceCube constraints. The preferred dark matter mass is 11.3--20.3~TeV, an order of magnitude heavier than the standard higgsino target. The smaller number density at a high mass can reproduce the LZ event given the exponential sensitivity to the velocity, while suppressing the capture rate in the Sun because of the higher infall velocity. On the other hand, the high mass requires a large coupling between the inert doublet and Higgs boson to have the correct annihilation cross section for the freeze-out. There is about an order of magnitude of validity range below the Landau pole, beyond which a UV completion is needed. Electroweak precision observables are below the experimental limits despite the large coupling.
Comments16 pages, 6 figures
