Higgs inflation still alive
High Energy Physics - Phenomenology
2014-06-20 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The observed value of the Higgs mass indicates that the Higgs potential becomes small and flat at the scale around GeV. Having this fact in mind, we reconsider the Higgs inflation scenario proposed by Bezrukov and Shaposhnikov. It turns out that the non-minimal coupling of the Higgs-squared to the Ricci scalar can be smaller than ten. For example, corresponds to the tensor-to-scalar ratio , which is consistent with the recent observation by BICEP2.
Keywords
Cite
@article{arxiv.1403.5043,
title = {Higgs inflation still alive},
author = {Yuta Hamada and Hikaru Kawai and Kin-ya Oda and Seong Chan Park},
journal= {arXiv preprint arXiv:1403.5043},
year = {2014}
}
Comments
7 pages, 3 figures; Version to appear on Physical Review Letters, footnotes added and expanded, references added, note added (v2)