论文标题
批判性地查看了电动相过渡
A Critical Look at the Electroweak Phase Transition
论文作者
论文摘要
电动相过渡打破了电子对称性。用于计算与此相变相关的可观察物的扰动方法遭受了严重的问题，例如仪表依赖性，红外发散和扰动理论的分解。在本文中，我们开发了用于处理相变的强大扰动工具。我们认为，量规和红外问题在一致的功率计数中没有。我们计算有限温度有效势到两个循环的通用模型中的通用量规固定参数。我们演示了仪表不变性，并对费米仪表中的标准模型执行数值计算。
The electroweak phase transition broke the electroweak symmetry. Perturbative methods used to calculate observables related to this phase transition suffer from severe problems such as gauge dependence, infrared divergences, and a breakdown of perturbation theory. In this paper we develop robust perturbative tools for dealing with phase transitions. We argue that gauge and infrared problems are absent in a consistent power-counting. We calculate the finite temperature effective potential to two loops for general gauge-fixing parameters in a generic model. We demonstrate gauge invariance, and perform numerical calculations for the Standard Model in Fermi gauge.
