Name: Vladyslav Shtabovenko Date: 06/12/15-10:38:22 AM Z


Hi,

please load FeynCalc via

$LoadFeynArts = False;
«HighEnergyPhysics`FeynCalc`

or use the latest development version

https://github.com/FeynCalc/feyncalc/wiki/Installation#dev_automatic_installation

Cheers,
Vladyslav

Am 12.06.2015 um 02:34 schrieb dinesh:
> Thank you for help but i am getting the following output :
> for h :-
> Contract(Subscript\[CurlyEpsilon], \[Mu] Overscriptu, _.\[Gamma]^0.u(p1,m1))
> for h2 :-
> 4 Contract(\!\(
> \*SubsuperscriptBox\(\[CurlyEpsilon]\), \(TraditionalForm\`\(TraditionalForm\`\[Mu]\)\), \(*\)\) HighEnergyPhysics`fctools`DiracTrace`Private`spursav(\CurlyPhi,\[Gamma]^0,\CurlyPhi)) Contract(Subscript\[CurlyEpsilon], \[Mu] HighEnergyPhysics`fctools`DiracTrace`Private`spursav(\CurlyPhi,\[Gamma]^0,\CurlyPhi))
>
> I don’t know about this error message .
>