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arXiv 1409.6889hep-phastro-ph.CO
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修正的辐射跷跷板模型中的暴胀

Inflation in a modified radiative seesaw model

Romy H. S. Budhi, Shoichi Kashiwase, Daijiro Suematsu

摘要:

宇宙早期暴胀时代的存在似乎得到了最近CMB观测的有力支持。然而,不幸的是,只有几个与粒子物理学密切相关的现实暴胀场景似乎已经知道。含有惰性双态暗物质的辐射中微子质量模型是解决目前实验中无法用标准模型解释的问题的一个很有前途的模型。为了使模型包含暴胀,我们将其推广为具有特定势的复标量场。这个标量可能与TeV尺度的中微子质量产生以及暴胀密切相关。我们表明,宇宙微波背景辐射观测所支持的暴胀是可以实现的,即使暴胀子在暴胀期间取次普朗克值。

英文摘要:

The existence of the inflationary era in the early Universe seems to be strongly supported by recent CMB observations. However, only a few realistic inflation scenarios which have close relation to particle physics seem to have been known unfortunately. The radiative neutrino mass model with inert doublet dark matter is a promising model for the present experimental issues which cannot be explained within the standard model. In order to make the model include inflation, we extend it by a complex scalar field with a specific potential. This scalar could be closely related to the neutrino mass generation at a TeV scale as well as inflation. We show that the inflation favored by the CMB observations could be realized even if inflaton takes sub-Planck values during inflation.

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