Abstract
The better understanding of the synthesis of heavy elements by the r-process-based on an improved description of nuclear beta decay far from stability -, and the investigation of globular clusters led to a larger age of the universe of ≥ 15 × 109 a. It will be shown 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 A in the Friedmann equation for a Hubble constant H0 ≥ 45 Mpc-1 sec-1. Consequences of a nonvanishing A (corresponding to a nonvanishing energy density of the vacuum) are more stringent limits on the amount of dark matter in the universe and on the neutrino mass.
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Klapdor, H.V., Grotz, K. (1986). Evidence for a Nonvanishing Energy Density of the Vacuum or Cosmological Constant. In: Klapdor, H.V. (eds) Weak and Electromagnetic Interactions in Nuclei. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71689-8_194
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