Evidence for a nonvanishing energy density of the vacuum (or cosmological constant)

Details Evidence for a nonvanishing energy density of the vacuum (or cosmological constant) Evidence for a nonvanishing energy density of the vacuum (or cosmological constant)

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301l..39k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. L39-L43.

Mathematics

Logic

25

Big Bang Cosmology, Constants, Evolution (Development), Mass Distribution, Universe, Vacuum, Dark Matter, Energy Distribution, Neutrinos, Nuclear Fusion

Scientific paper

In recent years the better understanding of the synthesis of heavy elements by the r-process and the investigation of globular clusters led to a larger age of the universe of ⪆17x109yr. It is discussed in this letter that with the assumption of inflationary expansion at the beginning of the evolution of the universe such a number leads to a nonvanishing cosmological constant Λ = (4.7 - 19)x10-57cm-2 in the Friedmann equation corresponding to an energy density of the vacuum of ρv = (2.5 - 10)x10-30g cm-3. Such a model leads to stringent limits on the amount of dark matter and especially on the neutrino mass.

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