All Questions
8 questions
0
votes
1
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139
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Solar neutrino spectrum: why are there two lines for beryllium?
I have a follow-up question to this one:
Solar neutrino Spectrum - Why are there discrete energies for Be and pep?
I understand why the lines for $^{7}\text{Be}$ and $pep$ are discrete, but why do we ...
- 65
3
votes
3
answers
354
views
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
1
vote
1
answer
242
views
How many $pep$-related electron-neutrinos $\nu_e$ does the Sun produce?
In the sun neutrinos can be produced by the rare proton-electron-proton (pep) reaction:
$$ {}^1_1 H + e + {}^1_1 H \to {}^2_1 H + \nu_e $$
How many pep-related electron neutrinos does the Sun ...
4
votes
2
answers
719
views
Are the muon/tau neutrinos produced in the Sun? If not, then where?
I was reading about Solar Neutrinos, and apparently they are all Electron Neutrinos.
However, there are two other types of neutrinos, the Muon and Tau Neutrinos. Does the Sun produce them? If not, ...
- 704
3
votes
1
answer
296
views
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
-4
votes
1
answer
243
views
Hydrogen fusion in the Sun-neutrino
One of the ways nuclear fusion happens in the sun is deuterium and tritium fusion which forms a Helium-4 atom and a neutrino. What flavor of neutrino is created - a tau, muon, or electron neutrino?
- 1
6
votes
2
answers
943
views
Free neutrons in the sun's core?
In the standard description of proton-proton fusion, the first step of the interaction proceeds through the unbound diproton $\rm^2He$:
$$
\begin{aligned}
\rm p + p &\to \rm {}^2He^*
\\
\rm ^2He^* ...
rob♦
- 94.2k
8
votes
1
answer
516
views
Is a Betelgeuse supernova able to neutralise earth's nuclear arsenal?
According to an article on newscientist.com, a neutrino beam could neutralise nuclear bombs by inducing a slow meltdown of the nuclear fuel. The neutrino generator
would need to be more than a ...
- 1,297