论文标题
伪纳姆布石通货膨胀与双瀑布
Pseudo-Nambu-Goldstone inflation with twin waterfalls
论文作者
论文摘要
我们提出了一个伪 - 南布 - 金石通货膨胀，在该通货膨胀中，耦合到充气量的双瀑布场是造成瀑布过渡从通货膨胀中的优雅退出的。在这种情况下，瀑布田和充气的$ Z_2 $对称性保护着充气电位，以免受瀑布耦合的危险量子校正。我们表明，成功通货膨胀有各种各样的自然模型参数和初始条件，并通过使用$ Z_2 $不变的Higgs门户来讨论瀑布场的扰动衰变。我们还为在带有轻质和重夸克的深色QCD的背景下，为双瀑布场的充气耦合提供了一个微观模型。
We propose a pseudo-Nambu-Goldstone inflation where twin waterfall fields coupled to the inflaton are responsible for the graceful exit from inflation by a waterfall transition. In this scenario, the $Z_2$ symmetry for the waterfall fields and the inflaton protects the inflaton potential against dangerous quantum corrections coming from the waterfall couplings. We show that there is a wide range of natural model parameters and initial conditions for a successful inflation and discuss the reheating process by the perturbative decay of the waterfall field with a $Z_2$ invariant Higgs portal. We also present a microscopic model for the inflaton couplings to the twin waterfall fields in the context of a dark QCD with light and heavy quarks.
