论文标题
从宇宙微波背景观测值的缩放转换和光文物约束的起源
Scaling Transformations and the Origins of Light Relics Constraints from Cosmic Microwave Background Observations
论文作者
论文摘要
在这里，我们在这里使用缩放转换的家族，即演化方程中的缩放率，在分析上理解来自宇宙微波背景（CMB）地图的光文的约束，鉴于不同程度的复杂性的宇宙学模型。我们描述了物理效应的原因，这些效应对数据的约束力至关重要，重点是最新颖的两者。我们用作参考模型，一种宇宙学模型，该模型接受了扩展变换，该模型会增加遗物的能量密度，同时避免所有这些原因。然后，只要给定模型和参考模型之间的差异，只要附加的光文遗物仅与标准模型组件在重力上相互作用，则可以将其对给定模型中的光遗物的约束理解为构成。这种理解支持宇宙学模型的发展，这些模型可以从CMB地图中逃避光文的约束。
We use here a family of scaling transformations, that scale key rates in the evolution equations, to analytically understand constraints on light relics from cosmic microwave background (CMB) maps, given cosmological models of varying degrees of complexity. We describe the causes of physical effects that are fundamentally important to the constraining power of the data, with a focus on the two that are most novel. We use as a reference model a cosmological model that admits a scaling transformation that increases light relic energy density while avoiding all of these causes. Constraints on light relics in a given model can then be understood as due to the differences between the given model and the reference model, as long as the additional light relics only interact gravitationally with the Standard Model components. This understanding supports the development of cosmological models that can evade light relics constraints from CMB maps.
