论文标题
中子星中暗物质捕获中的核子结构和强相互作用
Nucleon Structure and Strong Interactions in Dark Matter Capture in Neutron Stars
论文作者
论文摘要
我们概述了中子恒星中对暗物质捕获率的大多数评估中缺少的两个重要效果。由于恒星中的核子的暗物质散射涉及大动量转移，因此必须通过对辐射形式因子的动量依赖来考虑核子结构。另外，由于中子恒星物质的高密度，我们应该考虑核子相互作用，而不是将核子建模为理想的费米气体。发现适当地纳入这些效果可抑制最重的恒星最多四个数量级的暗物质捕获率。
We outline two important effects that are missing from most evaluations of the dark matter capture rate in neutron stars. As dark matter scattering with nucleons in the star involves large momentum transfer, nucleon structure must be taken into account via a momentum dependence of the hadronic form factors. In addition, due to the high density of neutron star matter, we should account for nucleon interactions rather than modeling the nucleons as an ideal Fermi gas. Properly incorporating these effects is found to suppress the dark matter capture rate by up to four orders of magnitude for the heaviest stars.
