A1 Journal article (refereed)
Early Universe Higgs dynamics in the presence of the Higgs-inflaton and non-minimal Higgs-gravity couplings (2017)


Ema, Y., Karciauskas, M., Lebedev, O., & Zatta, M. (2017). Early Universe Higgs dynamics in the presence of the Higgs-inflaton and non-minimal Higgs-gravity couplings. Journal of Cosmology and Astroparticle Physics, 2017 (6), 054. doi:10.1088/1475-7516/2017/06/054


JYU authors or editors


Publication details

All authors or editors: Ema, Yohei; Karciauskas, Mindaugas; Lebedev, Oleg; Zatta, Marco

Journal or series: Journal of Cosmology and Astroparticle Physics

ISSN: 1475-7516

eISSN: 1475-7516

Publication year: 2017

Volume: 2017

Issue number: 6

Article number: 054

Publisher: IOP Publishing

Publication country: United Kingdom

Publication language: English

DOI: http://doi.org/10.1088/1475-7516/2017/06/054

Open Access: Publication channel is not openly available

Web address of parallel published publication (pre-print): https://arxiv.org/abs/1703.04681


Abstract

Apparent metastability of the electroweak vacuum poses a number of cosmological questions. These concern evolution of the Higgs field to the current vacuum, and its stability during and after inflation. Higgs-inflaton and non-minimal Higgs-gravity interactions can make a crucial impact on these considerations potentially solving the problems. In this work, we allow for these couplings to be present simultaneously and study their interplay. We find that different combinations of the Higgs-inflaton and non-minimal Higgs-gravity couplings induce effective Higgs mass during and after inflation. This crucially affects the Higgs stability considerations during preheating. In particular, a wide range of the couplings leading to stable solutions becomes allowed.


Keywords: cosmology; cosmic inflation


Contributing organizations


Related projects

Dark Universe
Kainulainen, Kimmo
Academy of Finland
01/09/2014-31/08/2018


Ministry reporting: Yes

Reporting Year: 2017

JUFO rating: 1


Last updated on 2020-17-10 at 23:05