Interactive companion

Introduction to Elementary Particle Physics

Alessandro Bettini, third edition (Cambridge University Press, 2024) — rebuilt as a website for someone who knows linear algebra, signals and systems, and code, but has never taken a physics course past first year.

Every equation is broken down term by term, every figure is redrawn as an interactive diagram, every analogy says where it breaks, and every number can be reproduced by a NumPy snippet you can copy and run.

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Stored in this browser only — nothing is sent anywhere. ✓ marks the same units in the sidebar.

The learning path

Read left to right, top to bottom. The dashed arrows are three places the book asks you to remember something from much earlier — worth knowing about before you get there.

Part I — Foundations Part II — The Three Interactions Part III — The Standard Model & Beyond §2.8–2.9 chirality §5.1 gauge ch09 — chapter 12 is the list of what it cannot do 1 Preliminaries 2 The cast 3 Symmetries 4 Hadrons 5 QED 6 QCD 7 Weak 8 CP violation 9 Standard Model 10 Neutrinos 11 Grav. waves 12 Epilogue where it ends up REF Toolkit — used throughout
The arrows are the prerequisite graph recorded in each chapter's summary, not simply the page order. Chapter 12 is drawn as the destination rather than as the twelfth of twelve: it is a list of what chapter 9's Standard Model does not do, so it reads as the exit rather than the end.

Reference & Toolkit

A Reference & Toolkit (Appendices 1–6)

pp. 494–505 · 5 units

Part I — Foundations

1 Preliminary Notions

pp. 1–69 · 13 units

2 Nucleons, Leptons and Mesons

pp. 70–102 · 7 units

3 Symmetries

pp. 103–129 · 6 units

4 Hadrons

pp. 130–182 · 10 units

Part II — The Three Interactions

5 Quantum Electrodynamics

pp. 183–224 · 9 units

6 Chromodynamics

pp. 225–272 · 9 units

7 Weak Interactions

pp. 273–314 · 8 units

Part III — The Standard Model & Beyond

8 Oscillations and CP Violation in Quarks

pp. 315–350 · 8 units

9 The Standard Model

pp. 351–434 · 14 units

10 Neutrinos

pp. 435–480 · 8 units

11 Gravitational Waves

pp. 481–489 · 2 units

12 Epilogue

pp. 490–493 · 1 unit

Study aid derived from A. Bettini, Introduction to Elementary Particle Physics, 3rd ed., Cambridge University Press 2024, published Open Access under CC-BY-NC 4.0, DOI 10.1017/9781009440745. This site is not the book — it is an independently written, interactive companion for personal study. All figures are redrawn; all prose is original.