title: Goldstone bosons as fractional cosmic neutrinos.
abstract: It is suggested that Goldstone bosons may be masquerading as fractional cosmic neutrinos, contributing about 0.39 to what is reported as the effective number of neutrino types in the era before recombination. The broken symmetry associated with these Goldstone bosons is further speculated to be the conservation of the particles of dark matter.
authors.affiliation: Department of Physics, Theory Group, University of Texas, Austin, Texas 78712, USA.
authors.forename: Steven
authors.initials: S
authors.lastname: Weinberg