Antineutrinos After Big Bang: Where Are They?

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After the Big Bang, a gas of elementary particles, including neutrinos and antineutrinos, was created. While neutrinos decoupled and are thought to form a universal gas at approximately 2K, the fate of antineutrinos remains unclear. A significant question in cosmology is the apparent imbalance between matter and antimatter, with more matter existing than antimatter. Current hypotheses suggest that symmetry breaking may explain this discrepancy. The discussion highlights the need for further investigation into the behavior and existence of antineutrinos post-Big Bang.
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Right after the big bang a gas consisting of many elementary particles, including neutrinos and antineutrinos was produced. I know that the neutrinos decoupled and are believed to form a universal gas presently at about 2K. What happened to the anti-neutrinos?

Thanks
 
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Actually one of the major questions in cosmology is what happened to all the antimatter of ALL types that should have been produced after the big bang. Why is there more matter than antimatter? I'm not sure if we have a good answer yet.
 
The current hypothesis is symetry breaking is the 'bad guy'.
 
tut_einstein said:
Right after the big bang a gas consisting of many elementary particles, including neutrinos and antineutrinos was produced. I know that the neutrinos decoupled and are believed to form a universal gas presently at about 2K. What happened to the anti-neutrinos?

Thanks
When people say neutrinos, you can expect they mean anti-neutrinos as well. The neutrinos and anti-neutrinos would have been produced in nearly equal amounts.
 

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