PHYSICS 226A · PHYS 226AElementary Particle Physics
Physics · 6 units · Graduate courses (200-299)
Modern theories of elementary particle physics beginning with symmetry principles and conserved quantities, classic V-A theory of weak interactions, gauge field theories (Abelian and non-Abelian), spontaneous symmetry breaking, SU(2) χ U(1) electroweak interactions of leptons, quarks, Ws, Z° and γ, quark theory of hadrons and quantum chromodynamics.
S/U or letter grading.
When it runs
Not on the schedule for any of Fall 2025 through Spring 2027. UCLA publishes only that window, so this does not mean the course is gone — check the official listing.
Requisites
Official UCLA wording
Requisites: courses 221A, 221B, 221C, 230A, 230B (230A, 230B may be taken concurrently).
BruinTree reads · Prerequisite
confidence 1.00 · from text- PHYSICS 221A
- PHYSICS 221B
- PHYSICS 221C
- PHYSICS 230A
- PHYSICS 230Bmay be taken concurrently
Requires
Everything that has to come before this course, not just the courses named in the requisite above.
PHYSICS 226A
- PHYSICS 221AQuantum Mechanics
- PHYSICS 221BQuantum Mechanics
- PHYSICS 221CQuantum Mechanics
- PHYSICS 230AQuantum Field Theory
- PHYSICS 230BQuantum Field Theory
5 direct requisites. The whole upstream is here — 10 courses over 2 levels. Every course here opens its own tree.
Unlocks
What this course is a requisite for, and what those courses lead to in turn.
PHYSICS 226A
- PHYSICS 226DBeyond the Standard Model
- PHYSICS 291Research Tutorial: Elementary Particle Theory
2 courses list this as a requisite. The whole downstream is here — 2 courses over 1 level. Every course here opens its own tree.