Particle Physics Lecture 18: Mr. Feynman and the ABC's

Lecture from 2020 upper level undergraduate course in particle physics at Colorado School of Mines. You can follow along at:

[zsoltszabo]

@26:00 They are called corrections because in perturbation theory the sought-for "correct" quantity arises as a limit of a (hopefully) convergent series. The first order term is like a rough estimate, which is typically not right, but with each higher order term one gets closer and closer to the limit, so these are very appropriately referred to as "corrections".

[balestmi]

Thank you for sharing your knowledge.The way you explain is wonderful.