Advice for gluon vertex textbook

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
4 replies · 2K views
ericthebee
Messages
3
Reaction score
0
Hello everyone,
i'm having a hard time trying to derive the three gluon vertex in QCD, using the generating functional. Could someone please suggest a reference where it is computed step by step? My teacher lecture notes are not clear, and basically I don't understand what he's doing.
A very good reference on Green functions could be useful as well.
Thanks a lot!
 
Physics news on Phys.org
I'd check out chapt. 9 of Cheng & Li -- Gauge Theory of Elementary Particles, where everything is derived using path integrals.
 
I have the calculation in my notes, which have text in Romanian. I don't think you have the explicit hand-made calculations in any book (my notes are built upon the brilliant book by Bailin & Love). You shouldn't look for a book to show the calculation, you can do it by yourself:

You read off the 3 vertex gluon factor once you put the 3-field term in the Lagrangian action from x to p representation with 4D Fourier transform. The 3-field expansion of int d^4 x F_a^{mu nu} F^{a}_{mu nu} you should calculate by yourself (it's gAApartialA), then trans-Fourier the product of 3 fields, then use the symmetry property (3 bosons).

Since this the is the book recommendation section, you can warmly use D.Bailin's and A.Love's "Introduction to Gauge Field Theory", IOP, 1993 for any QFT/Green functions questions.
 
  • Like
Likes   Reactions: vanhees71
Thank you for your kind answers :)