Dear all,
I have such question:
Suppose I have expression which contains different combinations of Dirac Gammas, scalar products...etc....
Mathematica evaluated trace and now I want to simplify my result which contains different combination of four vectors or gammas....here I fail
How do I tell Mathematica that momentum square which I obtain to be treated as some constant for example, because when I try to write
% /. P^2->0 or %/.SP[P]->0 it has no reaction. When instead of momentum I put some parameter which is in my expression ...mathematica does understand.
Thank you
George
This archive was generated by hypermail 2b29 : 05/12/08-06:15:04 PM Z CEST