| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8187414 | Physics Letters B | 2016 | 5 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Yohei Ema, Kyohei Mukaida, Kazunori Nakayama,