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SpinorsSimplify

Description

  • DiracTrace calculates trace of Dirac matrices in $D$ dimensions
  • By default DiracTrace works in $D = 4$; for arbitrary $D$ one can use option DiracTrace[[Dimension: D]]
  • One can directly set trace of identity matrix (e.g. for dimensional regularisation): DiracTrace[[Dimension: D, TraceOfOne: 4]]
  • By default DiracTrace uses notation G_m for $\gamma_m$, G5 for $\gamma_5$ and e_abcd for Levi-Civita tensor. DiracTrace[G, G5, eps] or DiracTrace[[Gamma: G, Gamma5: G5, LeviCivita: eps]] specifies the notation for $\gamma_m$, $\gamma_5$ and Levi-Civita tensor.
  • DiracTrace[[Simplifications: rules]] will apply additional simplification rules to each processed trace

Examples

See also