Name: Natthawin Cho Date: 12/06/16-09:59:33 AM Z
I ran my program with FeynCalc and FeynArts package as following:
1. Create Feynman diagram with `CreateTopologies` and
`InsertFields`
2. Get Feynman amplitude from
`FCFAConvert[CreateFeynAmp[t2,…]`
3. Simplify amplitude with `// Contract // DiracSimplify // DiracTrick
// DiracEquation`
4. Calculate loop integral with `OneLoop`
The problem occurs at this step. I get
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!”
How to solve this problem?
Thanks.