Explore the Standard Model
The Living Particle Loom
A small cast. An extraordinary universe.
Follow the threads from familiar particles to the families they belong to.
THE INTERACTION STAGE
Separate examples. One connected picture.
THE SCENE
A proton schematic, an electron, and a neutrino. Separate examples, composed together.
Open the reference ↓VISUAL DESIGN STUDY · Physics review pending
The conventional 17-entry chart
All entries are directly searchable and selectable above. W expands to W+ and W− in detail; the gluon entry represents eight gluon states. Antiparticles are not counted as missing chart entries.
| Family | Generation I | Generation II | Generation III |
|---|---|---|---|
| Quarks | up (u), down (d) | charm (c), strange (s) | top (t), bottom (b) |
| Leptons | electron (e⁻), electron neutrino (νe) | muon (μ⁻), muon neutrino (νμ) | tau (τ⁻), tau neutrino (ντ) |
| Bosons | photon (γ), gluon (g), W (W±), Z (Z⁰), Higgs (H) | ||
Matter participation
This introductory matrix marks whether a matter group participates in an interaction. “Yes” means participation is possible—not that every pair reacts or that an event is guaranteed. This is not a complete vertex or higher-order-process map. Neutrinos have no direct electromagnetic coupling in the Standard Model; their electric charge is zero.
| Matter group | Electromagnetic | Strong | Weak |
|---|---|---|---|
| Quarks | Yes | Yes | Yes |
| Charged leptons (e, μ, τ) | Yes | No | Yes |
| Neutrinos | No direct coupling | No | Yes |
One authored event: free neutron beta decay
Illustrative sequence; timing not to scale. The full initial and final participants stay visible. The optional quark bookkeeping is explanatory; the virtual W− is not an independently observable stop-motion object.
Final products are shown together: proton, electron, and electron antineutrino.
Charge: 0 → (+1) + (−1) + 0 = 0.
Three generations: a repeated pattern
Generation columns group repeated particle types; they are not stages through which one particle grows. Selecting an entry highlights its generation peers. Size and speed do not encode mass or lifetime.
Fermions and bosons: quantum-state sharing
Fermions obey exclusion: identical fermions cannot occupy the same complete quantum state (including spin). Identical bosons can share a state. This is not an ordinary repulsive force, and drawn positions are not complete quantum states.
Including spin, identical fermions cannot share this state.
Identical bosons may share a state.
The Higgs: field and particle
The Higgs field is distinct from its localized excitation, the Higgs boson. The Higgs mechanism contributes to the masses of elementary particles that couple to the field; it does not account for all ordinary matter's mass. Neutrino mass is outside this simplified demonstration.
Higgs boson · localized field excitation
Common mistakes to avoid
- Leptons and quarks are families inside fermions, not peers of fermions and bosons.
- Not every lepton is electrically charged: neutrinos have zero electric charge.
- Weak interaction changes particle flavors in allowed processes; an interaction does not connect every particle indiscriminately.
- The Higgs is a boson, but not an ordinary force messenger.
- Spin is intrinsic quantum angular momentum, not a tiny ball physically rotating.
- Trails and family connectors are illustrations, not measured particle paths or decay routes.
References and scope
- CERN — The Standard Model: particle families, interactions, and model boundaries.
- U.S. Department of Energy — Bosons and Fermions: spin, statistics, and composite particles.
- Particle Adventure — Interaction summary: introductory interaction participation.
- Particle Adventure — Project summary: matter structure and beta decay context.
- CERN — The Higgs boson: field/excitation distinction and elementary-particle masses.
Quantitative masses, lifetimes, uncertainties, and branching fractions are intentionally omitted until maintained against a current particle-data reference. The visible event and teaching captions still require qualified physics review before release.