Apparent Hubble acceleration from large-scale electroweak domain structure

Abstract

The observed luminosity deficit of Type Ia supernovae (SNe Ia) at high redshift z can be explained by partial conversion to weak vector bosons of photons crossing large-scale electroweak domain boundaries, making Hubble acceleration only apparent and eliminating the need for a cosmological constant > 0.

Comments: 15 pages, 7 figures. Adopted conventions of arxiv:0804.2284, simplified computation of luminosity distributions, added footnotes