On Nucleon-Antinucleon Symmetry in Cosmology.
It has been suggested that cosmological models should embody an initial nucleon-antinucleon symmetry and that the present ratio of nucleons to antinucleons is the result of a statistical fluctuation. Simple arguments are presented for evolutionary models which appear to rule out this possibility in the development of the universe.
Alpher
R A
RA
Herman
R
R