Name: Ivan Petrov Date: 12/07/05-03:18:16 PM Z
Hello,
It seems that there is a bug in the axial gauge gluon propagator (one of
the signs is wrong ?):
I evaluate
GluonPropagator[p, \[Mu], a, \[Nu], b, Gauge ->
{Momentum[n], 1}]
under FeynCalc 4.1.1 and get
ImaginaryI\delta_{ab} /p^2
whereas the sign in front of the term
+ n^\mu n^nu p^2/(n·p)^2
should be different and p^\mu p^\nu n^2 should also be divided
onto (n·p)^2
It seems that a pair of brackets is skipped.
With best regards,
I.P.