PARTICLE PHYSICS EXPLORER
Standard Model · Interactive Simulator · Feynman Diagram Puzzles
⬡ Standard Model
↯ Feynman Puzzles
◎ Glossary
⬡ Quarks — Spin ½ — Feel all forces — 3 generations
u
Up
2.2 MeV
c
Charm
1.28 GeV
t
Top
173 GeV
d
Down
4.7 MeV
s
Strange
96 MeV
b
Bottom
4.18 GeV
◎ Leptons — Spin ½ — No strong force
e
Electron
0.511 MeV
μ
Muon
105.7 MeV
τ
Tau
1.777 GeV
νₑ
e-Neutrino
<1.1 eV
νμ
μ-Neutrino
<0.17 MeV
ντ
τ-Neutrino
<18.2 MeV
↯ Gauge Bosons — Force carriers — Integer spin
g
Gluon
0
γ
Photon
0
W±
W Boson
80.4 GeV
Z
Z Boson
91.2 GeV
◈ Higgs Boson — Spin 0 — Gives mass via Higgs field
H
Higgs
125.25 GeV
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