Nowadays I have calculted some quantity including Dirac Matrix.
My question is as follows:
In 'Feyncalc', we don't need to write IdentityMatrix?
For example, I want to express
where GS[p] is 4-dim matrix, but a is scalar. Actually
a is not a scalar but a*IdentityMatrix. So my question
is : what is right ?
2. GS[p]+a IdentityMatrix
This archive was generated by hypermail 2b29 : 12/16/17-11:20:02 PM Z CET