Data

School, undergraduate & advanced physics

1,110 references

Reference section

TopicStudy levelTypeTitles, symbols & aliases only

Direct reference

Laws & theories

1 entry in Laws & theories. Search: all. Topic: all. Level: all. Letter: all. Titles first, then explanatory matches.

Laws describe relationships; theories explain them; models make specific approximations. Their scope and limits matter as much as the statement itself.

Particle physics · theoryUndergraduate & beyond

Standard Model of particle physics

Quarks, leptons and gauge bosons interact through quantum chromodynamics and electroweak theory, with masses generated through Higgs-sector symmetry breaking.

SU(3)_C × SU(2)_L × U(1)_Y

Scope, limits & references

Where it applies

Known nongravitational elementary particles and interactions at tested energies.

Limits of the description

It omits gravity and does not explain dark matter, dark energy, neutrino-mass origin, matter–antimatter asymmetry or its parameter pattern.

ReferenceParticle Data Group 2025 Reviews, Tables and Plots ↗University of Cambridge DAMTP, David Tong’s Quantum Field Theory notes ↗

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Coverage, notation & sources

A growing reference from school fundamentals through undergraduate and selected advanced physics. No finite collection contains every specialised equation or theory; use topic and level filters, and always check assumptions.

Definitions use original wording, and each reference links to source material. Study labels are guides, not exam-board checklists. Worked check questions are educational examples, not an exam question bank.

Equations use SI quantities unless stated otherwise. Numerical values retain the units, precision and conditions of their source. Diagrams are explanatory models; their captions identify simplifications.