Closed rsato64 closed 2 years ago
A nonobvious fix would be to set FCSetDiracGammaScheme["BMHV"]
.
However, I would explicitly advise against using OneLoop
in the first place,
since this function is kept only for legacy reasons and is not really maintained anymore.
TID
and PaVeLimitTo4
should provide equivalent results
TID[GSD[k] . GSD[p]*FAD[{k, m}, {k - p, m}], k, UsePaVeBasis -> True,
ToPaVe -> Automatic]
% // PaVeLimitTo4
https://feyncalc.github.io/FeynCalcBookDev/TID.html https://feyncalc.github.io/FeynCalcBookDev/PaVeLimitTo4.html
Thanks a lot! It worked.
12.3.1 for Linux x86 (64-bit) (June 24, 2021)
9.3.1
Yes
(** User Mathematica initialization file **)
I have checked that the following oneloop integrals work properly in my environment.
OneLoop[k, GSD[k] * FAD[{k,m},{k-p,m}] ]
OneLoop[k, GSD[p] * FAD[{k,m},{k-p,m}] ]
OneLoop[k, GSD[k].GSD[k] * FAD[{k,m},{k-p,m}] ]
OneLoop[k, GSD[p].GSD[p] * FAD[{k,m},{k-p,m}] ]
But, this one loop integral does not work
OneLoop[k, GSD[k].GSD[p] * FAD[{k,m},{k-p,m}] ]
and I got error message like "DiracTrace::mixmsg: Expressions that mix D-, 4- and D-4-dimensional quantities are forbidden ... " I am wondering what an appropriate command to calculate oneloop integral with gamma matrices is.