I'm a brand new user of FeynCalc, so my question is probably simple to answer.
I have the following problem. I define a four vector as
where expr is a complicated expression containing Levi Civita tensors (with at least 3 contracted indeces). When I square this four vector using
the result is an expression where most of the Levi Civita tensors with an index alpha are not contracted.
How can I contract these tensors ?
Do I use the correct way in (1) to store a four vector under the name t ?
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