论文标题
$ z_2 $对称扩展的熵产生的熵生产研究标准模型的对称扩展
Study of entropy production due to electroweak phase transition in $Z_2$ symmetric extension of the Standard Model
论文作者
论文摘要
在这项工作中，我们考虑了标准型号（SM）的简单$ Z_2 $对称扩展，并继续研究Electroweak Electroweak相变（EWPT）在早期宇宙中的性质。我们表明，随着真实标量的增加，相变的性质从SM中的平滑交叉变为强的一阶。此外，我们在这种情况下显示熵释放高于SM。如果在相变开始之前存在某种东西，这可能会导致对冷冻的暗物质颗粒和重子不对称的强烈稀释。
In this work we consider the simple $Z_2$ symmetric extension to the Standard Model (SM) and proceed to study the nature of electroweak phase transition (EWPT) in the early universe. We show that the nature of the phase transition changes from a smooth crossover in the SM to a strong first order with this addition of the real scalar. Furthermore, we show the entropy release in this scenario is higher than that of the SM. This can lead to a strong dilution of frozen out dark matter particles and baryon asymmetry, if something existed before the onset of the phase transition.
