12. Particle Physics

Has the same mass but opposite charge (as ordinary matter)

The creation of a particle and its antiparticle when a gamma ray photon gets absorbed by a neutron

Occurs when a particle and its antiparticle collide / annihilate to produce two gamma ray photons

The force that bonds proton and neutrons in nuclei

The force responsible for radioactive beta decay

A particle that has no other particles inside of it

Elementary particle that does not experience the strong force

A particle that experiences the strong force

Elementary particle found in hadrons that experience the strong force.

Contains three quarks

Contains three antiquarks

Contains one quark and one antiquark

An anti-electron

*Proton: uud
Neutron: udd