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I am reading this Quanta Magazine article.
And I ran into this paragraph that surprised me:
Of course, photons would not normally described as "short-lived".
Shouldn't the author have tossed in the word "virtual" someplace?
Actually, I see the word "virtual" is included in the diagram that follows.
And I ran into this paragraph that surprised me:
| If the muon sat isolated from other particles, its g-factor would be exactly 2. But quantum theory requires that all other particles influence the g-factor. As the muon wobbles, it releases particles such as photons, which are too short-lived to show up in detectors. These can release other particles, which can release still more particles. The muon quickly reabsorbs all these fleeting particles, and the only trace they leave behind is that the muon wobbles a little bit more. Through these intricate chains of emission and reabsorption, every particle in existence has some small effect on the movement of the muon. |
Of course, photons would not normally described as "short-lived".
Shouldn't the author have tossed in the word "virtual" someplace?
Actually, I see the word "virtual" is included in the diagram that follows.