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Old Jun 28th 2017, 01:11 PM   #1
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Classical proof of g-factor



The image is taken from
https://en.wikipedia.org/wiki/Electr...f_the_g-factor

Does anyone have a proof for this theorem? More specific where they got the

g=(r_e/r_m)^8 from?
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Old Jul 11th 2017, 12:48 PM   #2
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This is an attempt to obtain the g=(r_e/r_m)^8. But it ends up only with (r_e/r_m)^4. Anyone who can derive what is wrong with theese calculations:

https://physics.stackexchange.com/qu...2-for-electron
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Old Jul 20th 2017, 05:45 AM   #3
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I don't think you can do that. The Dirac equation predicted the value of the g-factor being exactly 2 for an electron. QED predicted otherwise and it has been proven to be slightly larger than 2 for electrons.
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