Charge distribution inside an electron

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SUMMARY

The charge distribution of an electron is uniformly distributed, with no evidence supporting a non-uniform distribution that would create an electric dipole moment. Current experimental measurements, as reported by the Particle Data Group, indicate an electric dipole moment of (0.07±0.07)×10−26 e·cm, which encompasses zero, confirming the absence of any significant dipole moment. Thus, the prevailing conclusion is that the electron's charge does not concentrate at any specific point, either at the center or perimeter.

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Is the charge distribution of an electron uniform, or is there more charge concentrated near the center or perimeter?
 
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There are no indications of any size of an electron, and even for new models I am not aware of any good theory that would allow to discuss something like a charge distribution of an electron.
 
If the charge is distributed in a non-uniform way, it should have an electric dipole moment with perhaps more charge on one side compared to the other. Experimentally, the electric dipole moment is too small to measure in all experiments to date. The Particle Data Group publishes its value as (0.07±0.07)×10−26 e·cm. Notice this range includes 0. No dipole moment still does not answer your question, it just assures you it is evenly distributed.

Ref: http://en.wikipedia.org/wiki/Electron_electric_dipole_moment
 

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