12. Particle Physics
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1
Anti-Matter
Has the same mass but opposite charge (as ordinary matter)
2
Pair Production
The creation of a particle and its antiparticle when a gamma ray photon gets absorbed by a neutron
3
Pair Annihilation
Occurs when a particle and its antiparticle collide / annihilate to produce two gamma ray photons
4
Strong Nuclear Force
The force that bonds proton and neutrons in nuclei
5
Weak Nuclear Force
The force responsible for radioactive beta decay
6
Elementary Particle
A particle that has no other particles inside of it
7
Lepton
Elementary particle that does not experience the strong force
8
Hadron
A particle that experiences the strong force
9
Quark
Elementary particle found in hadrons that experience the strong force.
10
Baryon
Contains three quarks
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Antibaryon
Contains three antiquarks
12
Meson
Contains one quark and one antiquark
13
Positron
An anti-electron
14
*Proton and Neutron Quarks
*Proton: uud
Neutron: udd
Neutron: udd
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