IN the theory of decay as proposed by Fermi 1, one assumes the existence of elementary processes in which a neutron is transformed into a proton by simultaneous creation of an electron and a neutrino.

Positron Annihilation Spectroscopy (PAS) is a highly sensitive, non-destructive method for probing atomic-scale imperfections in a broad spectrum of materials, from metals and ceramics to polymers and ...

All known atomic nuclei and therefore almost all visible matter consists of protons and neutrons, yet many of the properties of these omnipresent natural building blocks remain unknown. As an ...

THE only one knowpfequation to describe particles of spin ½ is the derived by Dirac in his treatment of the electron. It must therefore be employed in any theoretical discussion of nucleons (protons ...

In particle physics, “annihilation” is a transformation. When you hear the word “annihilation,” you might think of a Marvel Comics storyline, or perhaps the first book in the Southern Reach Trilogy.

The PRad physics experiment studies how electrons scatter off of protons A scientific tug-of-war is underway over the size of the proton. Scientists can’t agree on how big the subatomic particle is, ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...