Matter Antimatter Annihilation event?

[gjonesy]

I was watching a documentary on this subject that I found quite interesting. They put forth an explanation of why we see mostly matter in the universe. That after the big bang equal amounts of both matter and antimatter were created and that the decay rate of antimatter was responsible for the dominance of matter in our universe and that an "Annihilation event" occurred destroying most of the antimatter.

Question...is there any evidence of this event?

 

[mathman]

This question (what happened to the anti-matter) hasn't been answered by current theory. The explanation you saw is speculation.

 

[newjerseyrunner]

There is some evidence for matter decaying slightly slower than antimatter: http://www-public.slac.stanford.edu/babar/nobel2008.htm Nobody has any idea why.