Constraints on cosmic charge asymmetry and neutrino charge from the microwave background

Abstract

Considering the observed anisotropy in cosmic microwave background radiation ($\Delta T/T\le 10^{-4}$) an upper limit on the electric charge asymmetry over a cosmological scale is found which is several orders more stringent than those found earlier. The same argument constrains the charge of massless, degenerate neutrinos.

Comments: 4 pages, LATEX, no figures