Saving CNB assisted EDE model at the expense of quantum corrections?
Abstract
As it is suggested in \cite{Sakstein:2019fmf, CarrilloGonzalez:2020oac}, one can dynamically introduce the coincidence time-scale for EDE in the framework of a particular mass-varying-neutrino-model as a time at which neutrinos constituting the cosmic neutrino background enter the non-relativistic regime. The model does not predict, however, the right amount of EDE density because of smallness of neutrino masses. One may hope to adjust the parameters in such a way as to ensure that the two-loop contributions are kept small while at the same time the effective mass for scalar field that enters the expression of zero-point-energy (for the field trapped in the minimum of effective potential) is sufficient for explaining the needed amount of EDE. Unfortunately, the answer is not in the affirmative.
Keywords
Cite
@article{arxiv.2306.10876,
title = {Saving CNB assisted EDE model at the expense of quantum corrections?},
author = {Michael Maziashvili},
journal= {arXiv preprint arXiv:2306.10876},
year = {2023}
}
Comments
12 pages, 1 figure; new section added, matches the published version