Name: Maksym Ovchynnikov Date: 05/30/19-04:16:47 PM Z
Hi!
I tried to simplify the following expression:
Amplitude1 =
DiracSimplify[
I*(e*g^2)/
8 (MetricTensor[\[Kappa], \[Lambda]]
(ScalarProduct[k,
k] - \[Alpha] mW^2) -
FV[k, \[Kappa]] FV[k, \[Lambda]])
DiracMatrix[\[Kappa]].(1 -
DiracMatrix[5]).(GSD[pprime] - GSD[k] +
ml).DiracMatrix[\[Mu]].(GSD[pprime] -
GSD[k] +
ml) DiracMatrix[\[Lambda]].(1 -
DiracMatrix[5]) FAD[{k,
Sqrt[\[Alpha]] mW}, {pprime - k, ml}, {p - k, ml},
{k, mW}]]
However, there is an error:
“DiracTrick::failmsg: Error! DiracTrick has encountered a fatal problem and must abort the computation. The problem reads: Incorrect combination of dimensions and g^5 scheme!”
What is a reason for this?