Table of the effective charges and masses of the electron, the up quark and the down quark, estimated on the assumption that the unit charge of the electron would be the amount of charge induced at the distance from the Y-z axis at which electron-positron pairs separate during the pair production process.

Particle

$r^{\prime }=r_e/\alpha$

Charge

mass

Electron

${r^{\prime }}_e=3.861592641\text{E}-13\text{m}$

1.602176462E−19C

9.10938188E−31kg

Up quark

${r^{\prime }}_{eu}=2.574395094\text{E}-13\text{m}$

1.068117641E−19C

2.04961092E−30kg

Down quark

${r^{\prime }}_{ed}=1.287197547\text{E}-13\text{m}$

5.340588207E−20C

8.19844378E−30kg