http://arxiv.org/abs/1503.08540
Traditional theories, which predict the cosmological evolution of the fundamental constants of Nature, assume that the underlying fields, which give rise to this evolution, are unnaturally light. We demonstrate that massive fields, such as dark matter, also directly produce a cosmological evolution of the fundamental constants. We consider the specific model of a scalar dark matter field $\phi$, which interacts with Standard Model particles via quadratic couplings in $\phi$. In this particular model, cosmological evolution of the fundamental constants arises due to changes in $\left<\phi^2\right>$ in time and space. The most stringent constraints on the physical parameters of the present model come from measurements of the neutron-proton mass difference at the time of the weak interaction freeze-out.
Y. Stadnik and V. Flambaum
Tue, 31 Mar 15
67/71
Comments: 4 pages