Or rather - Forget the propagators, its not even possible to replace a scalar with something slashed.
a GS[q].GS[l]
%/.a GS[l]->GS[J]
Does not give
GS[q].GS[J]
I really dont understand why it is not possible to replace when the matrices are dotted together.
I would really appreciate it if some has a solution for this problem
Thanks
Sharaz
Copenhagen
This archive was generated by hypermail 2b29 : 09/04/20-12:55:05 AM Z CEST