It explains how electrons are accelerated by an electron gun and then deflected by a magnetic field created by Helmholtz coils. The experiment measures the mass of an electron by analyzing the ...

What does increase dramatically is the energy (and the mass). At the beginning of an experiment, a beam of electrons may have a rest energy of 1/2 million electron volts; it is directed through a ...

He called it a neutron, and imagined it as a paired proton and electron ... particle -- one with the same mass as a proton, but with zero charge. His experiments were successful.

In recent years, some large physics experiments worldwide have been trying to gather evidence of a nuclear process known as ...

This makes neutrino experiments very challenging ... oscillation parameters are fundamental physical constants in the same way that the mass and charge of the electron are fundamental. Neutrino ...