Fundamental physical constants at low and high redshifts
Abstract
Spacetime variations of physical constants can be associated with the existence of Higgs-like scalar field(s) that couple non-universally to the baryonic matter. Recent results of astronomical spectral measurements of the fractional changes in the electron-to-proton mass ratio, mu = m_e/m_p, at low (z ~ 0) and high (z ~ 6.5) redshifts are discussed. It is shown that the distribution of the most accurate estimates of Delta mu/mu = (mu_obs - mu_lab)/mu_lab ranging between z = 0 and z ~ 1100 can be approximated by a power low Delta mu/mu = k_mu (1+z)^p, with k_mu = (1.7 +/- 0.3)x10^-8 and p = 1.99 +/- 0.03, implying a dynamical nature of the scalar field(s).
Keywords
Cite
@article{arxiv.2010.07134,
title = {Fundamental physical constants at low and high redshifts},
author = {S. A. Levshakov},
journal= {arXiv preprint arXiv:2010.07134},
year = {2021}
}
Comments
7 pages, 1 figure, to be published in the proceedings of the conference `Groundbased Astronomy in Russia. XXI Century', Nizhnii Arkhyz, Karachaevo-Cherkesia, Russia, 21-25 Sep 2020