Renomalizabilty and triple/quadruple vertices

  • A
  • Thread starter klauskl
  • Start date
  • Tags
    Lagrangian
  • #1
klauskl
1
0
I read that a Lagrangian is renormalizable if it contains only triple and quadruple vertices, or at most four powers of the fields.
Where can I read more about the precise mathematical conditions?
 
Physics news on Phys.org
  • #2
This depends on the dimensionality of the fields. A 4-fermion interaction (such as the one in the Fermi theory of weak interactions) is not renormalizable. This should be covered in any QFT textbook. Peskin & Schröder is pretty standard, but there are of course others too.
 
  • Like
Likes klauskl

Similar threads

  • High Energy, Nuclear, Particle Physics
Replies
8
Views
2K
  • High Energy, Nuclear, Particle Physics
2
Replies
49
Views
3K
  • High Energy, Nuclear, Particle Physics
Replies
2
Views
1K
  • High Energy, Nuclear, Particle Physics
Replies
2
Views
987
  • General Math
Replies
7
Views
1K
  • High Energy, Nuclear, Particle Physics
Replies
15
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
447
Replies
2
Views
114
  • High Energy, Nuclear, Particle Physics
2
Replies
38
Views
3K
Back
Top