Birth of matter in the early universe.

Details Birth of matter in the early universe. Birth of matter in the early universe.

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992amfa.meet...11k&link_type=abstract

Annual meeting of the Finnish Astronomical Society, p. 11

Physics

Scientific paper

At the present the universe contains about 1 proton/m3, 400 photons/cm3 and 108 neutrinos/cm3 for each of three flavours of neutrinos. The author discusses how the small ratio nb/nγ ≍ 2×10-9 can be understood in terms of the (slightly extended) standard model of particle physics.

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