PHYSICS 226A

Elementary Particle Physics

Physics · 6 units · Graduate courses (200-299)

Open the requisite map View official UCLA course listing ↗Find on Bruinwalk ↗

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.

Checking the Schedule of Classes…

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

all of

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 221AQuantum Mechanicsanother path to it
PHYSICS 221CQuantum Mechanics
- PHYSICS 221AQuantum Mechanicsanother path to it

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.