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Goldstone Bosons as Fractional Cosmic Neutrinos

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Steven Weinberg
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.
Read more at http://arxiv.org/pdf/1305.1971v1.pdf

Written by physicsgg

May 10, 2013 at 1:21 pm

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