Uploaded October 2019 | Updated September 2026, 9 hours ago

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In this video, I show you how to derive the Klein-Nishina formula for Compton scattering. I also derive the unpolarized cross section, and the total cross section. Beyond this, I take the low energy limits of all of these things to obtain the Thompson differential scattering cross section (polarized and unpolarized) and the Thompson total scattering cross section.

My Quantum Field Theory Lecture Series:
youtube.com/playlist?list=PLSpklniGdSfSsk7BSZjONcfhRGKNa2uou

Deriving the Feynman rules video:
youtube.com/watch?v=ToL-37wnHZw

General differential scattering cross section formula derivation:
youtube.com/watch?v=HqOetWTHeGs

Superfluid Helium Resonance Experiment video:
youtu.be/unUNQNmuvUQ