标题： 利用IceCube升级的太阳暗物质前景灵敏度 显示英文标题

标题： Prospective Sensitivity to Solar Dark Matter using the IceCube Upgrade

摘要： 虽然天体物理观测表明85%的物质含量未被解释，但这种暗物质（DM）成分的性质仍然未知。弱相互作用大质量粒子（WIMPs）——在弱相互作用尺度或以下相互作用的DM粒子——可以自然地解释这种缺失的物质。这些与标准模型（SM）的相互作用使它们能够被像太阳这样的天体引力捕获。太阳核心中的被捕获DM随后可能会湮灭，产生稳定的SM粒子，其中只有中微子能够逃逸出太阳致密的内部。因此，来自太阳方向的中微子过剩将作为DM的证据。IceCube升级项目是IceCube中微子观测站的密集填充，它将降低能量阈值，并在1至500 GeV范围内提高灵敏度，从而增强IceCube检测GeV尺度DM的能力。在本次贡献中，我展示了IceCube升级项目对DM-质子散射截面的灵敏度预测，DM质量范围在3 GeV到500 GeV之间。这些灵敏度使IceCube成为3 GeV到10 TeV质量范围内最敏感的间接探测实验。 显示英文摘要

摘要： While astrophysical observations imply that 85% of the matter content is unaccounted for, the nature of this dark matter (DM) component remains unknown. Weakly Interacting Massive Particles (WIMPs) - DM particles that interact at or below the weak interaction scale - could naturally explain this missing matter. These interactions with the Standard Model (SM) allow them to be gravitationally captured in celestial bodies like the Sun. Trapped DM in the solar core could subsequently annihilate, producing stable SM particles, of which only neutrinos can escape the Sun's dense interior. Therefore, an excess of neutrinos originating from the direction of the Sun would serve as evidence of DM. The IceCube Upgrade, a dense infill of the IceCube Neutrino Observatory, will lower the energy threshold and improve sensitivity in the range from 1 to 500 GeV, thereby enhancing IceCube's ability to detect GeV-scale DM. In this contribution, I present projections of the IceCube Upgrade's sensitivity to the DM-proton scattering cross section for DM masses between 3 GeV and 500 GeV. These sensitivities position IceCube as the most sensitive indirect detection experiment for DM in the mass range from 3 GeV to 10 TeV.