arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.00048hep-ph
收藏

中子星中暗物质的捕获

Capture of Dark Matter in Neutron Stars

Giorgio Busoni

摘要:

中子星的极端条件使它们成为基本相互作用的理想测试设施。中子星可以通过散射捕获暗物质。散射的结果是,暗物质的动能被转移到恒星。这一现象的一个观测结果可能是老的中子星变暖到近红外温度。不同的近似或简化已被应用到以前的分析的捕获过程。在这篇文章中,我们总结了一个显着改进的治疗暗物质捕获,适当占所有相关的物理效应在广泛的暗物质质量。其中包括引力聚焦、完全相对论散射处理、泡利阻塞、中子星不透明度和多重散射效应。本文引用的一般表达式,使捕获率进行数值计算,并简化表达式的特定类型的相互作用或质量制度,这大大提高了计算效率。由于我们的方法,我们能够模拟散射的暗物质从任何中子星成分以及捕获的暗物质在其他紧凑的对象。我们的结果被应用于暗物质与中子、质子、轻子和奇异重子的散射。

英文摘要:

The extreme conditions in Neutron Stars make them ideal test facilities for fundamental interactions. A Neutron Star can capture Dark Matter via scattering. As a result of the scattering, Dark Matter kinetic energy is transferred to the star. An observational consequence of this can be the warming of old neutron stars to near-infrared temperatures. Different approximations or simplifications have been applied to previous analyses of the capture process. In this article, we summarise a significantly improved treatment of Dark Matter capture, which properly accounts for all relevant physical effects over a wide range of Dark Matter masses. Among them are gravitational focusing, a fully relativistic scattering treatment, Pauli blocking, neutron star opacity and multiple scattering effects. This paper cites general expressions that allow the capture rate to be computed numerically, and simplified expressions for particular types of interactions or mass regimes, which greatly increase the efficiency of computation. As a result of our method, we are able to model the scattering of Dark Matter from any neutron star constituent as well as the capture of Dark Matter in other compact objects. Our results are applied to scattering of Dark Matter from neutrons, protons, leptons and exotic baryons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑