Baryon number instability and the matter content of a charge-symmetric universe.
Abstract
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.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- May 1976
- Bibcode:
- 1976A&A....49...97E
- Keywords:
-
- Antimatter;
- Baryons;
- Cosmology;
- Elementary Particle Interactions;
- Particle Energy;
- Universe;
- Annihilation Reactions;
- Critical Temperature;
- Entropy;
- Hadrons;
- Nucleons;
- Pions;
- Astrophysics