Matter, Antimatter, and Micro Black holes

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Discussion Overview

The discussion revolves around the question of the apparent absence of antimatter in the universe, specifically exploring the hypothesis that micro black holes formed during the Big Bang may have preferentially absorbed antimatter. The conversation touches on concepts from cosmology and theoretical physics, including Hawking radiation and particle-antiparticle pair production.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant proposes that micro black holes could explain the imbalance of matter and antimatter by absorbing more antiparticles than particles, based on the conditions present during the Big Bang.
  • Another participant questions the premise by asking why a black hole would preferentially absorb antimatter over matter.
  • A subsequent reply suggests that the absorption could occur by chance, despite a theoretical 50/50 probability for particle types.
  • Another participant argues that a mechanism explaining any preference for absorbing antimatter would be necessary to support the hypothesis, noting that black holes are generally understood as equal opportunity gravity wells.

Areas of Agreement / Disagreement

Participants express differing views on the plausibility of the hypothesis regarding micro black holes and antimatter absorption. There is no consensus on whether this theory is credible or if it requires further mechanisms to be considered valid.

Contextual Notes

The discussion highlights the need for additional explanations or mechanisms to support claims about black hole behavior and antimatter absorption, as well as the reliance on chance in the proposed scenario.

derek.basler
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I have recently been reading Moment of Creation by James Trefil, and I have stumbled upon the question, where has all the antimatter gone? I asked myself, what if micro black holes produced by the tremendous energy at the big bang are the answer? If you have an understanding in hawking radiation then you know particle-antiparticle pairs are produced at balck holes. What if, by chance, antiparticles were absorbed by these micro black holes more than regular particles. It could explain why there is more matter than antimatter. Has this been dissproved by anyone? Is this a plausible theory?

I also posted this in the cosmology section, but it seems that not many people wander there.
 
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Why would a BH prefer to absorb antimatter.
 
It doesn't even have to prefer, it could happen by chance. Even though there would be a 50/50 chance either way, it could just happen by chance that antimatter was absorbed more by a BH.
 
A mechanism for this prefence would be necessary to lend it credibility. Black holes are equal opportunity gravity wells according to existing theory.
 

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