Intuition for divergences in sunset diagram

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
1 reply · 2K views
Higgsy
Messages
18
Reaction score
0
What is the intuition behind divergences for the sunset diagram? I know that there is quadratic divergence by why no quartic divergence or higher?
Figures_J_topology.png
 

Discussion

Physics news on Phys.org
You have two loops and three propagators. Counting the powers of momentum in those gives you a naive estimate of the degree of divegence.
 
  • Like
Likes   Reactions: MrBrandonius

Similar threads

Undergrad How to Calculate the Self Energy Amplitude of a Sunset Diagram?

  • Safinaz
  • · Replies 2 ·
  • High Energy, Nuclear, Particle Physics
Replies
2

Undergrad Intuition on divergence and curl

  • cgiustini
  • · Replies 3 ·
  • Differential Geometry
Replies
3

Graduate Physical intuition for divergence, gradient, and curl definitions

  • member 428835
  • · Replies 8 ·
  • Calculus
Replies
8