Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1852781 | Physics Letters B | 2008 | 5 Pages |
Abstract
Within the context of mass-varying neutrinos, we construct a cosmological model that has a phase transition in the electromagnetic fine structure constant α at a redshift of 0.5. The model accommodates hints of a time variable α in quasar spectra and the nonobservance of such an effect at very low redshifts. It is consistent with limits from the recombination and primordial nucleosynthesis eras and is free of instabilities.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
L. Anchordoqui, V. Barger, H. Goldberg, D. Marfatia,