Measuring the mass of an electron is one thing, but explaining it is quite something else. In the Standard Model of Particle Physics the mass of the electron is still one of the 26 free parameters of the model. In other words, we really haven't got a clue how to explain this within the current model ;-)
Very interesting comment. I have not looked into the standard model for a long time - are you referring to both the mass of the electron as well as the charge of the electron? Presumably these can only be within very tightly defined ranges of value, as for other fundamental physical constants, in order to have an observable universe.
Thank you very much! Very interesting!
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Measuring the mass of an electron is one thing, but explaining it is quite something else. In the Standard Model of Particle Physics the mass of the electron is still one of the 26 free parameters of the model. In other words, we really haven't got a clue how to explain this within the current model ;-)
Very interesting comment. I have not looked into the standard model for a long time - are you referring to both the mass of the electron as well as the charge of the electron? Presumably these can only be within very tightly defined ranges of value, as for other fundamental physical constants, in order to have an observable universe.