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arXiv · 1409.6889

Inflation in a modified radiative seesaw model

Romy H. S. Budhi·Shoichi Kashiwase·Daijiro Suematsu
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Abstract

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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Romy H. S. Budhi, Shoichi Kashiwase, Daijiro Suematsu. 2015-01-01. Inflation in a modified radiative seesaw model. https://doi.org/10.1103/physrevd.90.113013

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