All Questions
4
questions
1
vote
0
answers
279
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Tadpole diagram in one-loop QCD gluon self-energy renormalization
I am trying to study QCD renormalization at 1-loop order. So, when I take into account the gluon self-energy corrections, the book I am studying from says that there are three diagrams who contribute ...
- 21
1
vote
1
answer
256
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What are all the 1PI gluon 3-point function Feynman diagrams at 1-loop?
As an exercise in renormalization, I want to calculate the divergent part of the gluon 3-point function and gluon 4-point function matrix element. What are all the 1PI one-loop Feynman diagrams?
- 2,599
0
votes
0
answers
71
views
5d nonabelian gauge theory or 5d QCD explicit $\beta$-function
Question: Are there some derived $\beta$-function formula
$$
\beta(g) = \frac{\partial g}{\partial \log(\mu)}
$$ for nonabelian gauge theory in the 5-dimensional spacetime at some energy scale $\mu$ ...
- 7,848
1
vote
0
answers
199
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Question about Renormalization of Ghosts in QCD in MS scheme
During a calculation of the Renormalization constant of the ghosts in QCD I stumbled over the following question:
When I calculate the self-energy of the Faddeev-Popov ghosts in $SU(N)$ non-abelian ...
- 854