太阳中微子对非弹性暗物质散射的约束：基于近期LUX-ZEPLIN观测
Solar Neutrino Constraints on Inelastic Dark Matter Scattering in Light of Recent LUX-ZEPLIN Observations
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- Stockholm University（斯德哥尔摩大学）
- The Oskar Klein Centre for Cosmoparticle Physics（奥斯卡·克莱因宇宙粒子物理中心）
- University of Wisconsin, Madison（威斯康星大学麦迪逊分校）
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中文总结 AI 辅助
利用IceCube太阳高能中微子数据约束LZ事件偏好的非弹性暗物质模型，确认并推广了Pospelov & Ramani的结果。
中文摘要 AI 辅助
LUX-ZEPLIN（LZ）合作组近期报告探测到一个具有极高反冲能量的单核反冲候选事件。缺乏相应的低能事件促使人们提出暗物质与原子核散射具有非平凡动量依赖性或发生非弹性过程的模型，从而抑制低能反冲的速率。在本研究中，我们利用IceCube观测中太阳高能中微子未出现过剩这一事实，考虑了对非弹性暗物质的约束，包括LZ事件所偏好的情景。我们确认了Pospelov & Ramani的结果，并更一般地表明，太阳高能中微子过剩的缺失强烈约束了此类模型的参数空间。
英文摘要
The LUX-ZEPLIN (LZ) Collaboration recently reported the detection of a single nuclear recoil candidate event with a very high recoil energy. The lack of any corresponding low-energy events motivates models in which dark matter scattering with nuclei has a nontrivial momentum dependence or proceeds inelastically, suppressing the rate of low-energy recoils. In this study, we consider the constraints on inelastic dark matter, including scenarios favored by the LZ event, from the absence of an excess of high-energy neutrinos from the Sun in IceCube observations. We confirm the results of Pospelov & Ramani and show, more generally, that the lack of an excess of high-energy neutrinos from the Sun strongly constrains the parameter space in this class of models.
