Matter Antimatter Annihilation event?

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SUMMARY

The discussion centers on the concept of Matter Antimatter Annihilation events and their implications for the observable universe. It highlights that after the Big Bang, equal amounts of matter and antimatter were created, but the decay rate of antimatter led to a predominance of matter. The conversation raises the question of whether there is any concrete evidence for these annihilation events, noting that current theories do not fully explain the observed dominance of matter over antimatter. A reference to the BaBar experiment indicates some evidence suggesting matter decays slightly slower than antimatter, yet the underlying reasons remain unclear.

PREREQUISITES
  • Understanding of Big Bang cosmology
  • Familiarity with particle physics concepts
  • Knowledge of matter-antimatter interactions
  • Awareness of the BaBar experiment findings
NEXT STEPS
  • Research the BaBar experiment and its implications on matter-antimatter asymmetry
  • Explore theories regarding the decay rates of particles in particle physics
  • Investigate current hypotheses on the origins of matter dominance in the universe
  • Learn about the role of annihilation events in cosmological models
USEFUL FOR

Astronomers, physicists, and anyone interested in the fundamental questions of the universe's composition and the nature of matter and antimatter.

gjonesy
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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?
 
Last edited:
Astronomy news on Phys.org
This question (what happened to the anti-matter) hasn't been answered by current theory. The explanation you saw is speculation.
 

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