A model for time-evolution of coupling constants
arXiv:2310.13308 · doi:10.1016/j.physletb.2023.138424
Abstract
A general model is proposed for time-varying coupling constants in field theory, assuming the ultraviolet cutoff is a varying entity in the expanding universe. It is assumed that the cutoff depends on the scale factor of the universe and all bare couplings remain constant. This leads to varying renormalized coupling constants that evolve in proportion to the Hubble parameter. The evolution of the standard model constants is discussed.
arXiv comment7 pages, minor changes, version to appear in Phys Lett B
References in corpus (8)
- A Search for Time Variation of the Fine Structure Constant
- Varying constants, Gravitation and Cosmology
- Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
- Strong Limit on a Variable Proton-to-Electron Mass Ratio from Molecules in the Distant Universe
- The status of varying constants: a review of the physics, searches and implications
- Improved limits on the coupling of ultralight bosonic dark matter to photons from optical atomic clock comparisons
- Symmetry Breaking and Time Variation of Gauge Couplings
- Time Variations in the Scale of Grand Unification