Student Friendly Introduction to QFT · Problem 12.8

Renormalization: Putting It All Together

Physics — QFT · renormalization-group-equation

Problem

Following similar steps to what we did to find (12-41), derive (12-42),

p\frac{\partial}{\partial p} e(p) = e^3(p) b_n.

Hint: You need use

S_F(p) = \dfrac{1}{\not{p} - m_0 + i\varepsilon}