On the reheating stage after inflation
On the reheating stage after inflation
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充气后的再加热阶段
DOI：
10.1103/physrevd.68.123505
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发表时间：
2003
影响因子：
5
通讯作者：
A. Riotto
中科院分区：
文献类型：
--
作者：
E. Kolb;A. Notari;A. Riotto
我们指出，膨胀衰变产物在膨胀后的再加热阶段获得等离子体质量。等离子体质量可能使膨胀衰变在运动学上被禁止，导致温度在一段时间内保持冻结在平台值。我们表明，最终的再加热温度可能是由膨胀质量唯一决定的，而可能不依赖于它的耦合。我们的发现对于再加热过程中危险遗迹（如引力子）的热产生，从宇宙微波背景各向异性数据中提取暴胀粒子物理模型的边界，再加热过程中大质量暗物质候选物质的产生，以及在再加热过程中产生大质量粒子的重子生成或轻生模型具有重要意义。
We point out that inflaton decay products acquire plasma masses during the reheating phase following inflation. The plasma masses may render inflaton decay kinematicaly forbidden, causing the temperature to remain frozen for a period at a plateau value. We show that the final reheating temperature may be uniquely determined by the inflaton mass, and may not depend on its coupling. Our findings have important implications for the thermal production of dangerous relics during reheating (e.g., gravitinos), for extracting bounds on particle physics models of inflation from Cosmic Microwave Background anisotropy data, for the production of massive dark matter candidates during reheating, and for models of baryogenesis or leptogensis where massive particles are produced during reheating.