Hi,
I have an issue with FeynCalc not being able to simplify an expression:
the expression reads
Plus[Times[Eps[LorentzIndex[n],LorentzIndex[o],LorentzIndex[p],Momentum[v]],Pair[LorentzIndex[m],Momentum[v]]],Times[-1,Eps[LorentzIndex[m],LorentzIndex[o],LorentzIndex[p],Momentum[v]],Pair[LorentzIndex[n],Momentum[v]]],Times[Eps[LorentzIndex[m],LorentzIndex[n],LorentzIndex[p],Momentum[v]],Pair[LorentzIndex[o],Momentum[v]]],Times[-1,Eps[LorentzIndex[m],LorentzIndex[n],LorentzIndex[o],Momentum[v]],Pair[LorentzIndex[p],Momentum[v]]],Times[Eps[LorentzIndex[m],LorentzIndex[n],LorentzIndex[o],LorentzIndex[p]],Pair[Momentum[v],Momentum[v]]]]
and should be zero (since this is the difference of twice evaluating the same expression with FeynCalc in two different ways). However, even when assigning explicit values to the Lorentz indices, I cannot get this expression to vanish explicitly.
Thanks in advance for your help and sorry, should this be a rookie mistake (I've searched for a long time for a solution before posting).
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