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arXiv 1605.07342hep-phastro-ph.CO
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膨胀过程中/膨胀后模量稳定的电弱真空

Electroweak Vacuum Stabilized by Moduli during/after Inflation

Yohei Ema, Kyohei Mukaida, Kazunori Nakayama

摘要:

目前的电弱真空很可能是亚稳态的,它可能导致暴胀期间或之后的严重不稳定性。我们提出了一个简单的解决方案的真空不稳定性的问题,在/后的通货膨胀。如果存在一个模场,它与标准模型场之间存在普朗克抑制的相互作用,那么早期宇宙中的希格斯四次耦合自然会取与现在不同的值。早期宇宙中四次耦合的微小变化使希格斯势绝对稳定,因此我们在暴胀期间/之后没有真空不稳定性。

英文摘要:

It is known that the present electroweak vacuum is likely to be metastable and it may lead to a serious instability during/after inflation. We propose a simple solution to the problem of vacuum instability during/after inflation. If there is a moduli field which has Planck-suppressed interactions with the standard model fields, the Higgs quartic coupling in the early universe naturally takes a different value from the present one. A slight change of the quartic coupling in the early universe makes the Higgs potential absolutely stable and hence we are free from the vacuum instability during/after inflation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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