FEYN CALC SYMBOL

DiracTrace


is the head of Dirac traces. Whether the trace is evaluated depends on the option DiracTraceEvaluate. Direct trace evaluation should be performed with TR (or Tr). The argument expr may be a product of Dirac matrices or slashes separated by the Mathematica Dot (.). For comments regarding gamma^5schemes see the notes for TR.

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Basic Examples  (1)Basic Examples  (1)

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