Antimatter and light element yields - Could dark matter be baryonic?

Details Antimatter and light element yields - Could dark matter be baryonic? Antimatter and light element yields - Could dark matter be baryonic?

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...317l...1d&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 317, June 1, 1987, p. L1-L5. CAICYT-supported resea

Astronomy and Astrophysics

Astrophysics

8

Abundance, Antimatter, Big Bang Cosmology, Dark Matter, Light Elements, Nuclear Fusion, Baryons, Deuterium, Lithium Isotopes

Scientific paper

The effects of antimatter appearance on light element production in a hot big bang model are analyzed. It is found that D and 3He yields are always strongly modified with respect to the standard big bang scenario. Relevant variations in the synthetized 7Li abundance occur if antinucleons appear while nuclear reactions are effective. The standard upper limits on the baryon density could be ruled out in this scenario. A region of parameters of the antimatter injection model is presented in which the synthesized abundances of light elements in a universe closed by baryons are in agreement with observations.

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