The key to the mechanism is the lochon, which during the collision process attains significant energy (keV to MeV
range); but, being tightly bound in an l = 0 ground state, it does not radiate.
***That’s not 1=0, it is “L”, l=0, when you copy from PDF there are tons of artifacts.
I was concerned about that possible ("ell" vs "one") single-character discrepancy; that 's why I posted the quotation in the (supposedly less-ambiguous) Courier font.
Here, using the genuinely unambiguous "Geneva" font, the discrepancy is obvious:
<SNIP>being tightly bound in an l [not "1"] = 0 ground state,
<SNIP>
FWIW, that makes the authors' use of "an (ell)" grammatically correct, as well.
~~~~~~~~~~
BTW, I don't see why you act so da*ned defensive on this subject; I basically said I agreed with the article -- except for that single-character anomaly. Now that I admit to my misreading of that single character, what is your beef?
~~~~~~~~~~
I never feared to leave my lab and "go to the blackboard" with my theoretician colleagues -- but, then, I always dragged them to the lab to test what we had derived. (That is how we spent Friday afternoons in the summer -- when most MA folks had taken off for the cape...)
What is your problem with rational discussion? Is your name "Pons" or "Fleischman"? '-)