>From a first reading I did not find that the paper mentioned any high energetic particles at initiation, just normal free e and a couple of slow d. It's just that when looking at the mathematical solution using a second order interaction the first part is e - d, interaction and are supposed to in the next phase produce a virtual e.g. mathematical constructed d that hit's the other d and produce a fusion reaction due to the fact that this virtual d get's high enough speed to overcome the coloumb potential. To note that it looks at first site that things happen in sequence like first A then B, but it is all a mathematical memoic and helper to do the actual calculation in practice the whole sequence d + e -> virtual d + d -> nuclear reaction -> fast e + He is all strongly linked. If it all is correct it is interesting I cannot follow all the math, and I'm not being an expert so take my word and judgement with a grain of salt
Cheers!
