Name: hzgzlh (email_not_shown)
Date: 06/02/07-03:37:07 AM Z


you may first define SP[p,p]=m^2;
then Tr[GS[p].GS[p]]//FCE
the function FCE could change p^2 to m^2




hzgzlh
2007-06-02



发件人: George
发送时间: 2007-06-01 02:31:29
收件人: feyncalc@feyncalc.org
抄送:
主题: How do I make following substitution

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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