In reply to Eric Walker's message of Sun, 22 Jul 2012 21:15:00 -0700: Hi, [snip] >When the Wikipedia article talks about a ratio of 1:400 for pep to pp, is >that the ratio of successful deuterium formation for each of these >branches,
Yes. [snip] >Also, when you mention "days" in connection with the D+p branch, I think >you're referring to the duration that it dominates stellar evolution rather >than, for example, the amount of time you would need in order to see it >occur in significant amounts in a P&F cell? I'm talking about the half-life of the reaction. IOW a measure of the lifetime of any given D atom in the Sun. IOW after a few days half of the D atoms currently present will have been converted to He3. (Sorry no idea of the half-life of the He3+He3 reaction). > >Eric Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
