All Questions
3 questions
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What caused neutrinos to decouple at $t=1$ second?
Was it simply that the density and/or kinetic energy got too low, because of expansion? Or was it something about the weak force itself (which I thought gelled around $10^{-10}$s?
For the CMB, ...
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14
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How would cold neutrinos get trapped by stars?
Continuing on from the cool physics Q&A'd on the threads Where are all the slow neutrinos?, Is it possible that all "spontaneous nuclear decay" is actually "slow neutrino" ...
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2
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1
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Experimental evidence for the relic neutrinos
What are the experimental (indirect) evidence for the cosmic neutrino background? Where can I read more about this?
The discussion on the wikipedia page about the C$\nu$B seems to me to be more ...
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