Trying to reset the LeviCivita sign conventions appears to me to have no effect when using the definitions above. For example I find that the input
Tr[[GA[a, b, c, d, 5]]
$LeviCivitaSign = 1;
Tr[GA[a, b, c, d, 5]]
-4 I Eps[LorentzIndex[a], LorentzIndex[b], LorentzIndex[c],
independent of whatever else I set $LeviCivitaSign to.
Is there some other way to fix the conventions in the latest version of Feyncalc (9.2); or is this affected by, say, a more recent version of Mathematica (I am currently using 10.1)?
This archive was generated by hypermail 2b29 : 02/22/19-05:20:01 AM Z CET