Mathematics – Logic
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989anphy.192...45m&link_type=abstract
Ann. Phys. (N.Y.), Vol. 192, No. 1, p. 45 - 58
Mathematics
Logic
1
Cosmology: Nucleosynthesis
Scientific paper
Although recent models concerning the cosmological quark-hadron phase transition and the resulting primordial nucleosynthesis seem attractive in several respects, it could be argued that the high production of 7Li from such models render them of little interest. However, a dynamic nucleosynthesis calculation taking into account the diffusion of matter, during the nucleosynthesis epoch, between the different density regions produced by the phase transition, has not yet been carried out. The authors investigate the consequences of such a diffusion and identify a high-density, Ωb = 1, universe which under specific conditions can reproduce the observed primordial isotopes including that of 7Li. They discuss how the low deuterium abundance predicted by this early universe can help resolve the problem of deuterium depletion associated with standard galactic chemical evolution models. They further show that the amount of A > 56 isotopes produced in this universe may help explain why second generation stars possess s-process elements in their stellar atmospheres.
Fowler William A.
Malaney Robert A.
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