Possible Explanation for Baryon Asymmetry

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SUMMARY

The discussion centers on the phenomenon of baryon asymmetry, specifically the observed predominance of matter over antimatter in the universe. It posits that the flow of time influences this asymmetry, suggesting that reversing time could lead to a greater presence of antimatter. The conversation also touches on the implications of singularity, where matter and antimatter may achieve balance, potentially releasing Hawking radiation. The violation of CP symmetry is highlighted as a critical factor in understanding the current matter-antimatter imbalance, which remains an unresolved issue in cosmology.

PREREQUISITES
  • Understanding of baryon asymmetry in cosmology
  • Familiarity with CP violation and its implications
  • Knowledge of singularity and its role in physics
  • Basic concepts of Hawking radiation
NEXT STEPS
  • Research the mechanisms behind baryon asymmetry in the early universe
  • Explore the implications of CP violation in particle physics
  • Study the concept of singularity in general relativity
  • Investigate Hawking radiation and its significance in black hole physics
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Astronomers, physicists, and cosmologists interested in the fundamental questions of matter-antimatter imbalance and the early universe's conditions.

sarat1998
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The reason why there is far more matter than anti-matter in our universe is because we are going forward in time. But if we reverse the direction of time anti-matter will become more prominent and I believe that at singularity there is a balance between both of them. The interaction between them at singularity might release Hawking radiation.
 
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About the time, you just make a speculation. Of course there "should" be a violation of T symmetry as there is a violation of CP (such that CPT would be conserved). But in any case we don't know what causes the current CP asymmetry which would allow matter abundances to be so great in comparison to antimatter. Once (if what we have verified so far) there should be #matter=#antimatter... For some reason (still unknown) this stopped working and you got a "matter" dominated universe. And this didn't happen throughout the history of the universe, but it happened during the very first moments of it.
 
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