Environment Dependent Electron Mass and the H$_0$-Tension
High Energy Physics - Phenomenology
2022-08-17 v3 General Relativity and Quantum Cosmology
Abstract
A difference in the electron mass at recombination from the measured value today has been shown to relieve the Hubble tension. In this article we propose a simple mechanism that would allow for such a mass difference. Similar in form to the Higgs field, we consider a Yukawa coupling between the symmetron scalar field and the electron. However, the symmetron vacuum expectation value depends on the matter density of its environment which, in principle, would allow its contribution towards the electron mass to differ between recombination and today. We detail the coupling and discuss possible observables.
Cite
@article{arxiv.2201.03127,
title = {Environment Dependent Electron Mass and the H$_0$-Tension},
author = {Rance Solomon and Garvita Agarwal and Dejan Stojkovic},
journal= {arXiv preprint arXiv:2201.03127},
year = {2022}
}
Comments
5 pages, 2 figures