论文标题
低量表通货膨胀后，重新加热引起的斧头暗物质
Reheating-Induced Axion Dark Matter After Low Scale Inflation
论文作者
论文摘要
即使通货膨胀哈勃尺度小于零温度轴质量，轴突和充气之间的动力学混合也可以产生轴突暗物质。我们分析了这个最近发现的“充气”框架中的轴轴动力学，并提出了一种新的宇宙学场景，在该场景中，轴突在重新加热的时期内从其真空中移开，从而产生了观察到的暗物质丰度。我们讨论对QCD轴和轴突样颗粒的影响。
A kinetic mixing between the axion and the inflaton allows for a production of axion dark matter even if the inflationary Hubble scale is smaller than the zero-temperature axion mass. We analyze the axion dynamics in this recently discovered "inflaxion" framework, and present a new cosmological scenario where the axion drifts away from its vacuum during the reheating epoch, giving rise to the observed dark matter abundance. We discuss the implications for both the QCD axion and axion-like particles.
