论文标题
混合higgs- $ r^2 $型号的扰动加热
Perturbative Reheating in the Mixed Higgs-$R^2$ Model
论文作者
论文摘要
最近对混合Higgs-$ r^2 $模型的预热过程进行了深入研究，但仍缺少对扰动加热的分析。在本文中，我们讨论了该模型（p）重新加热期间扰动衰减的效果。结果表明，扰动衰减可以在整个重新加热过程中发挥重要作用。根据模型参数，扰动衰减会影响加热的不同阶段。我们研究了和不存在早期预热阶段的扰动加热，并计算重新加热的温度和整个扰动过程的持续时间。我们发现，早期预热阶段的细节可能不会影响最终的重新加热温度，而它可能会影响重新加热的E折数量。
The preheating process in the mixed Higgs-$ R^2 $ model has been investigated in depth recently, but the analysis of perturbative reheating is still missing. In this paper, we discuss the effect of perturbative decay during (p)reheating in this model. It is shown that perturbative decay can play an important role throughout the whole reheating process. Depending on the model parameters, perturbative decay can affect different stages of the reheating. We study the perturbative reheating with and without the presence of early preheating stage, and calculate the reheating temperature and the duration of the whole perturbative process. We find that the detail of the early preheating stage may not affect the final reheating temperature while it can affect the number of e-folds of reheating.
