Baryon number instability and the matter content of a charge-symmetric universe

Details Baryon number instability and the matter content of a charge-symmetric universe Baryon number instability and the matter content of a charge-symmetric universe

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....49...97e&link_type=abstract

Astronomy and Astrophysics, vol. 49, no. 1, May 1976, p. 97-102.

Astronomy and Astrophysics

Astrophysics

2

Antimatter, Baryons, Cosmology, Elementary Particle Interactions, Particle Energy, Universe, Annihilation Reactions, Critical Temperature, Entropy, Hadrons, Nucleons, Pions

Scientific paper

It is proposed that, as a charge-symmetric universe cools through the hadron era, it undergoes a phase transition which breaks the underlying charge-conjugation symmetry, giving rise to separate regions of matter and antimatter. The matter content of the universe at the critical temperature is calculated using the statistical bootstrap model. The observed value of the entropy per baryon is deduced therefrom and shown to be related to the ratio of electromagnetic to strong-interaction couplings. The relation of these results to recent work on the same subject is discussed.

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