Solar neutrino branching ratios: pp, pep, hep, and the unnamed heep reaction

Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
1 reply · 1K views
snorkack
Messages
2,388
Reaction score
537
Sun produces neutrinos by sundry reactions:
p+p→d+e++νe - called "pp"
p+p+e→d+νe - called "pep"
3He+p→α+e++νe - called "hep"
3He+p+e→α+νe - never mentioned. What should it be called? "Heep"?
Now, heep neutrinos should form a sharp line at a quite high energy.
What is the intensity of heep line?
What is the branching ratio between pp and pep reactions?
What should be the branching ratio between hep and heep reactions?
 
Physics news on Phys.org

Discussion

snorkack said:
What is the branching ratio between pp and pep reactions?
It is not a branching ratio because it is not a decay. It depends on the star. As usual, Wikipedia has an article about it.
snorkack said:
What should be the branching ratio between hep and heep reactions?
I would expect "heep" to be completely negligible, even hep has a tiny reaction rate.