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Dear Organizers,

Thanks for your extremely applicable package.

I use DiracTrac to calculate trace of gamma5 with eight four-vectors slash. FeynCalc gives me Levicivita tensor with indices which are name of four-vectors. It doesn't give result with doing all contractions. Even I define my four-vectors with following form

qslash=Contract[GA[\alpha],FourVector[p,\alpha]]

for all of them.

One the result for follwoing calculation

Tr[gamma5slash[p1]slash[p2]slash[p3]slash[p4]slash[p5]slash[p6]slash[p7]slash[p8]]

is

\epsilon^{p1p2p3p4}

instead of

\epsilon^{\alpha1\alpha2\alpha3\alpha4}

p1_{\alpha1}p2_{\alpha2}p3_{\alpha3}p4_{\alpha4}............

I use feyncalc 9.2.0 , mathematica 10 and Macintash 10.12.1

How can solve this problem?

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