- #1
Sunset
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Hi!
Has anybody seen the perturbative expansion of the generating functional of QCD [tex] Z[J,\xi,\xi*,\eta,\eta*] [/tex] expressed with Feynman diagrams? I mean, there should be an expansion, containing external sources denoted by something like
-------o abbreviation for [tex] i \int d^4 x J [/tex]
-------# abbreviation for [tex] i \int d^4 x \eta [/tex]
and so on...
I haven't found any book showing this.
Is it maybe simply the sum of all possible graphs with their combinatorical prefactors that can be constructed from the Feynman rules?
Best regards Martin
Has anybody seen the perturbative expansion of the generating functional of QCD [tex] Z[J,\xi,\xi*,\eta,\eta*] [/tex] expressed with Feynman diagrams? I mean, there should be an expansion, containing external sources denoted by something like
-------o abbreviation for [tex] i \int d^4 x J [/tex]
-------# abbreviation for [tex] i \int d^4 x \eta [/tex]
and so on...
I haven't found any book showing this.
Is it maybe simply the sum of all possible graphs with their combinatorical prefactors that can be constructed from the Feynman rules?
Best regards Martin