Subject
elementary particle
2
quantum chromodynamics
quantum electrodynamics
2
quarks
2
Dirac equation
1
bootstrap model
1
electromagnetism
1
electroweak interaction
1
gauge theory
1
hadron
1
kaon
1
lepton
1
neutrino
1
neutron
1
quantum field theory
1
strange particle
1
superconductivity
1
weak interaction
1