What Was the Ratio of Quarks to Antiquarks in the Early Universe?

[bobsmith76]

Martin Rees in his book Just Six Numbers says that in the early universe there 1 billion antiquarks and a billion and one quarks. Is that really known? How is known what the ratio of antiquarks to quarks was?

 

[mathman]

I don't know the details, but I believe it is based on an estimate of the total energy of the big bang and the amount of matter in the universe.

 

[bobsmith76]

Thanks, that is an adequate answer for the moment