On the possibility of nucleosynthesis in any matter-antimatter symmetric cosmology

Details On the possibility of nucleosynthesis in any matter-antimatter symmetric cosmology On the possibility of nucleosynthesis in any matter-antimatter symmetric cosmology

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..37..151c&link_type=abstract

Astrophysics and Space Science, vol. 37, Oct. 1975, p. 151-167.

Astronomy and Astrophysics

Astrophysics

10

Antimatter, Astronomical Models, Cosmology, Matter (Physics), Nuclear Fusion, Symmetry, Abundance, Astrophysics, Deuterium, Helium

Scientific paper

In any matter-antimatter symmetric cosmology, primeval nucleosynthesis imposes a typical size on a region of matter (antimatter) much larger than the diffusion length of neutrons. Observational results concerning the abundances of cosmic deuterium and helium are used to evaluate how large this region must be. It is found that a minimal size of the order of 150 million cm at a temperature of 1 MeV is compatible with the standard abundances of primeval helium and deuterium.

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