Maths HEP Lunchtime Seminars: Can we explain a varying alpha?
1 February 2002 13:00 in CM221
"We investigate the cosmological consequences of a simple scalar field theory in which the fine structure constant is allowed to vary. The theory is gauge and Lorentz invariant, and satisfies general covariance. We show how the theory can explain the recent evidence for a varying alpha at high redshift, whilst still honouring geonuclear, nucleosynthesis and CMB constraints on alpha. The model also complies with fifth force experiments and makes predictions on the nature of the dark matter in the Universe."