Nucleosynthesis in bouncing cosmologies

Details Nucleosynthesis in bouncing cosmologies Nucleosynthesis in bouncing cosmologies

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..87..333n&link_type=abstract

Astrophysics and Space Science, vol. 87, no. 1-2, Oct. 1982, p. 333-346.

Physics

Astronomical Models, Cosmology, Nuclear Fusion, Abundance, Density Distribution, Deuterium, Energy Distribution, Helium, Matter (Physics), Neutrinos, Oscillators, Universe

Scientific paper

It is shown that certain anomalies connected with the primordial abundances of light nuclei may be resolved if it is assumed that the universe oscillates between phases of finite densities. Since general relativity does not produce bouncing models of the universe, such models are obtained through the introduction of a negative energy scalar field of zero ret mass. It is shown that all the relevant parameters of the dynamics of the model and the nucleosynthesis in it are determined by observations and that a self-consistent picture emerges. The model is capable of admitting more than three neutrino flavors without an embarrassingly high primordial helium content. It is also shown that the calculations could be adopted to describe production of light nuclei in compact massive bouncing objects.

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