Name: Tae-il Hur (email_not_shown)
Date: 12/17/04-02:08:50 AM Z

Hi,

FeynCalc5b1 gives wrong results when calculating trace of gamma5 matrix.

[in]
--------------------
tr = TR[Calc[#]] &;
tr[GA[a, b, c, d, 5]]

(* or *)

Tr[GA[a, b, c, d, 5]]
--------------------

[out]
------------------------
-4 Eps[LorentzIndex[a], LorentzIndex[b], LorentzIndex[c], LorentzIndex[d]]
------------------------

[cf. ver 4]
------------------------
-4 I Eps[LorentzIndex[a], LorentzIndex[b], LorentzIndex[c], LorentzIndex[d]]
------------------------


Thank you for your labor,
Tae-il Hur

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