Student Friendly Introduction to QFT · Problem 12.7
Renormalization: Putting It All Together
Physics — QFT · qed-running-coupling-constant
Problem
Determine what the QED coupling constant will be at 6.0 MeV. (You need to assume the evaluation is at a virtually immeasurable amount less than 6.0 MeV.) Then determine what the coupling constant is at 12.0 MeV (i.e., immeasurably below 12.0). Use the same assumptions as Prob. 6.