Hi,
I want to calculate the quartic interctions of the charged Higgs in THDM model using the coamand
1. Simplify[GetScatteringDiagrams[{Hpm, Hpm} -> {Hpm, Hpm}] /. {tChan -> 0, uChan -> 0, qChan -> 1, sChan -> 0, conj[Subscript[\[Lambda], 5]] -> Subscript[\[Lambda], 5]}]
2. Simplify[GetScatteringDiagrams[{Hpm, conj[Hpm]} -> {Hpm, conj[Hpm]}] /. {tChan -> 0, uChan -> 0, qChan -> 1, sChan -> 0, conj[Subscript[\[Lambda], 5]] -> Subscript[\[Lambda], 5]}]
I am getting ZERO. Also it is true for any model having extra charged particles. Why? Am I doing anything wrong?
Please help me to understand this..
NB:
I getting exact result for hh hh > hh hh
Simplify[GetScatteringDiagrams[{hh, hh} -> {hh, hh}] /. {tChan -> 0, uChan -> 0, qChan -> 1, sChan -> 0, conj[Subscript[\[Lambda], 5]] -> Subscript[\[Lambda], 5]}]