论文标题
深色物质的重新加热和通货膨胀产生
Reheating and Post-inflationary Production of Dark Matter
论文作者
论文摘要
我们对产后再加热期间的暗物质产生进行系统分析。在指数膨胀的期间之后，充气开始了一段衰减后的阻尼振荡。这些振荡和热衰减产物温度的演变取决于流动型电位$ V（φ）$的形状。我们考虑$φ^k $的潜力。 $ k = 2 $发生标准的物质主导振荡。通常，暗物质的产生可能取决于通货膨胀后的最高温度，或重新加热温度，当宇宙辐射主导时定义后者的温度。我们表明，暗物质的产生对充气电位很敏感，并且在$ k> 2 $时很大程度上取决于最高温度。我们还考虑了深色物质的产生，其质量大于再加热温度。
We perform a systematic analysis of dark matter production during post-inflationary reheating. Following the period of exponential expansion, the inflaton begins a period of damped oscillations as it decays. These oscillations and the evolution of temperature of the thermalized decay products depend on the shape of the inflaton potential $V(Φ)$. We consider potentials of the form $Φ^k$. Standard matter-dominated oscillations occur for $k=2$. In general, the production of dark matter may depend on either (or both) the maximum temperature after inflation, or the reheating temperature, where the latter is defined when the Universe becomes radiation dominated. We show that dark matter production is sensitive to the inflaton potential and depends heavily on the maximum temperature when $k>2$. We also consider the production of dark matter with masses larger than the reheating temperature.
