Calculating the Mass of the Electron: Theory vs. Experiment

[qsa]

Has anybody been able to calculate mass of the electron from theory alone, without the use of experiment in any way. If not, why not?

 

[ansgar]

Has anybody been able to calculate mass of the electron from theory alone, without the use of experiment in any way. If not, why not?

nope

 

[Entropia]

I can confirm that the mass of the electron cannot be calculated solely from theory without the use of experiment. This is because the mass of the electron is a fundamental physical constant that is not derived from any other known quantities. In order to accurately calculate the mass of the electron, we must use experimental techniques and measurements to determine its value.

The theoretical understanding of the electron's mass comes from quantum mechanics, specifically the Dirac equation. This equation describes the behavior of electrons and other particles with spin, and it predicts the electron's mass based on its charge and spin. However, these theoretical predictions must be tested and confirmed through experimental data in order to be considered valid.

Furthermore, the mass of the electron is affected by various factors such as its interaction with other particles and fields, and these effects cannot be fully captured in theoretical calculations alone. Experimentation allows us to account for these factors and refine our understanding of the electron's mass.

In summary, while theory plays a crucial role in our understanding of the electron's mass, it cannot provide an accurate calculation without the use of experimental data. The combination of theory and experiment is essential in advancing our understanding of the physical world.