· FeynCalc

Next message: Frederik Orellana: “mailing list”
Previous message: alessandro mirizzi: “Traces”
In reply to: alessandro mirizzi: “Traces”
Next in thread: Rolf Mertig: “Re¨ Traces”

Name: Rolf Mertig Date: 02/04/05-02:37:18 PM Z

Hi Alessandro,
yes, there is right now a problem with the
trace function (I am working on it right now).
You can easily work around it like this:

tr = TR[Calc[#]]&;

Then
tr[Calc[(P2 + m).(al - be).(P1 + m)]] // Factor2 // FCE // InputForm

gives:

8*(SP[a, p2]*SP[p1, pp] - SP[a, p1]*SP[p2, pp])

Rolf