All Questions
9 questions
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How do you build a Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) detector?
*Milkjug-sized neutrino detector (the COHERENT neutrino detector):
https://news.uchicago.edu/story/worlds-smallest-neutrino-detector-observes-elusive-interactions-particles#:~:text=The%204%2Dinch%...
- 47
3
votes
3
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354
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Why don't the nuclear fusion processes inside the sun produce electron antineutrinos $(\bar\nu_e)$?
Why don't the nuclear fusion processes inside the sun produce $\bar\nu_e$ despite having the same mass as $\nu_e$? Is the reason as simple as "there is no production channel for $\bar\nu_e$s.&...
- 27.2k
2
votes
2
answers
274
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How do we exactly use neutrinos to probe the core of the Sun (if they can only interact weakly)?
Neutrinos are interacting with ordinary matter weakly. They pass through matter mostly unimpeded.
Thus, neutrinos typically pass through normal matter unimpeded and undetected.
Neutrinos' low ...
- 29.3k
0
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44
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The basics of neutrino telescopes
I'm trying to understand the basic operation of the ANTARES neutrino telescope. Here is what I've gathered:
The detection of neutrinos relies upon the detection of muons.
Cosmic rays and neutrinos ...
5
votes
2
answers
98
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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, ...
- 578
2
votes
1
answer
179
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What's up with these new high energy neutrinos?
A bunch of pop science articles just popped up talking about new high-energy neutrino detection. See this article, published today, for example. The answer to this question says that the source of ...
- 251
3
votes
1
answer
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Solar neutrino Spectrum - Why are there discrete energies for Be and pep?
What is the reason why some reactions give a continuum for the energy of the released neutrinos and others give only a discrete value ($\ ^7B$ and $pep$ )?
Thanks for your help. Please feel free to ...
- 653
14
votes
3
answers
937
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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" ...
- 135k
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2
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Neutrinos: how can they carry information about universe?
I know that neutrinos are particles with a very small mass and no electric charge. They infrequently interact with matter and so they can give us information about the "old" universe. But how can they ...
- 1,143