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Physics

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  • $\begingroup$ Why not to add a paragraph for free particles? This would make the answer good independently of the OP meaning, which is not too clear. $\endgroup$
    – Alchimista
    Commented Sep 28, 2020 at 12:30
  • $\begingroup$ Is all of the above not true for free particles? $\endgroup$
    – Epideme
    Commented Sep 28, 2020 at 12:39
  • $\begingroup$ yes your are right. I meant free and accelerated. But op should really clarify also because as for the comment by Vadim. $\endgroup$
    – Alchimista
    Commented Sep 28, 2020 at 14:13
  • $\begingroup$ It's true for accelerated protons and electrons also (these are essentially quickly moving free particles), in that neither decay. You can collide them into things and get interactions, but this would not be agree. But yeh, totally agree, needs clarification. I'll add a note in the answer from your suggestion too. $\endgroup$
    – Epideme
    Commented Sep 28, 2020 at 14:18
  • 1
    $\begingroup$ Still the op does not mention decay but if they radiate. They indeed radiates if accelerated, as well they indeed radiate when relaxes (of course is the system). Anyway sorry, I shouldn't have bother you but comment directly to the question. $\endgroup$
    – Alchimista
    Commented Sep 28, 2020 at 16:25