论文标题
早期宇宙模型建设
Early-Universe Model Building
论文作者
论文摘要
对早期宇宙演变的理论研究是粒子物理学的重要组成部分，使我们能够识别出对标准模型的可行扩展以及可以通过各种实验和观测来探测的动机参数空间。在这份白皮书中，我们回顾了早期宇宙的粒子物理模型。首先，我们概述了各种模型，这些模型解释了早期宇宙的两种基本要素（暗物质和重子不对称）以及试图解决当前观察性异常的基本要素。然后，我们在中微子质量，轴上和电动层层次结构问题的几种解决方案中讨论早期宇宙的动力学。最后，我们审查采用宇宙学动力学标准模型的自然问题解决方案。
Theoretical investigations into the evolution of the early universe are an essential part of particle physics that allow us to identify viable extensions to the Standard Model as well as motivated parameter space that can be probed by various experiments and observations. In this white paper, we review particle physics models of the early universe. First, we outline various models that explain two essential ingredients of the early universe (dark matter and baryon asymmetry) and those that seek to address current observational anomalies. We then discuss dynamics of the early universe in models of neutrino masses, axions, and several solutions to the electroweak hierarchy problem. Finally, we review solutions to naturalness problems of the Standard Model that employ cosmological dynamics.
