Name: Jon Palmer Date: 12/10/04-05:30:33 PM Z


Dear Rolf,

We appreciate the help understanding these trace bugs.

Does this bug persist if the traces result from calculating amplitudes using
FeyArts/Phi. For instance in the following example

tops = CreateTopologies[args]
inserts = InsertFields[tops, ….]
ampFA = CreateFeynAmp[inserts, ….]
ampFC = FAToFC[ampFA, DiracTraceEvaluate -> True]

Can we assume that the traces in ampFC will be evaluated properly or is a
workaround required?

Many thanks
Jon Palmer