Simple cosmological solution to the Higgs field instability problem in chaotic inflation and the formation of primordial black holes
Simple cosmological solution to the Higgs field instability problem in chaotic inflation and the formation of primordial black holes
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混沌暴胀和原初黑洞形成中希格斯场不稳定性问题的简单宇宙学解
DOI：
10.1103/physrevd.94.063509
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
K.Mukaida and T.T.Yanagida
中科院分区：
文献类型：
--
作者：
M.Kawasaki;K.Mukaida and T.T.Yanagida
我们重新审视混沌膨胀，它提供了一个自然的解决方案的初始条件问题，和亚稳的电弱真空，这是建议的LHC和当前的顶夸克和希格斯玻色子的质量测量的结果之间的兼容性。众所周知，混沌暴胀对电弱真空的稳定性构成威胁，因为它在暴胀或预热过程中容易产生大的希格斯起伏，并引发灾难性的真空衰变。在本文中，我们提出了一个简单的宇宙学解决方案，其中真空是稳定的混沌膨胀，预热，之后。这个简单的解自然地预言了原始黑洞的形成。我们发现有趣的参数区域，目前的暗物质密度是由他们提供的。此外，热leptogensis可以容纳在我们的场景。
We revisit the compatibility between chaotic inflation, which provides a natural solution to the initial condition problem, and the metastable electroweak vacuum, which is suggested by the results of the LHC and the current mass measurements of the top quark and Higgs boson. It is known that chaotic inflation poses a threat to the stability of the electroweak vacuum because it easily generates large Higgs fluctuations during inflation or preheating and triggers the catastrophic vacuum decay. In this paper, we propose a simple cosmological solution in which the vacuum is stabilized during chaotic inflation, preheating, and afterwards. This simple solution naturally predicts formation of primordial black holes. We find interesting parameter regions where the present dark matter density is provided by them. Also, the thermal leptogensis can be accommodated in our scenario.