1

I am trying to generate diagrams for H -> ZZ process at one loop level. I only want these 5 diagrams in the final output given by (T1 P1 N1), (T1 P2 N2), (T8 P1 N12), (T9 P1 N14), (T10 P1 N16) given in the following FeynArts diagrams output. Can Anyone please tell me that how can I remove rest of the diagrams. Is their any particular command that I can use to remove particular vertices or couplings in FeynArts. If yes, please explain it with an example.

THANKS, enter image description here

mandeep kaur
  • 11
  • 2
  • 1
    You can write your own filters using DiagramSelect (cf. page 30 in the FA manual), but I'm not an expert on this, so I can't really provide examples. If you know which diagrams you need, it's usually easier to extract them explicitly as in CreateFeynAmp[DiagramExtract[diags,{5,6,7,8}]. Regarding the wavefunction corrections, you can remove them already during the topology generation stage using the ExcludeTopologies option (cf. page 13 in the manual). – vsht Jan 12 '21 at 10:02

0 Answers0