Name: Frederik Orellana (email_not_shown)
Date: 06/06/07-06:35:35 PM Z

Use StandardForm to get the "raw" expression and you'll see what you can

Pair[Momentum[p], Momentum[p]] -> m^2

George wrote:
> Suppose I have
> GS[p].GS[p]it gives me
> (p_slash)(p_slash), then I take trace
> Tr[%]it gives me
> 4p^2
> Now how can I tell mathematica to treat p^2 as m^2 ???
> just typing %/. p^2->m^2 or similar think i think does not work...
> Pls tell me if I am not clear with my question
> Thank you

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