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DiracG

LTensor[DiracG, μ] or γμ
represents the Dirac gamma matrix with index μ.

LDot[DiracG,p] or γ.p
represents the Feynman slash AddSpans[].

Details and OptionsDetails and Options

ExamplesExamplesopen allclose all

Basic Examples  (5)Basic Examples  (5)

Traces involving Dirac gamma matrices:

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A γ without an index or dot is invalid:

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All objects in spinor space should be entered inside Spur or DiracMatrix. Otherwise, symbols outside Spur or DiracMatrix are always assumed to commute, and can lead to incorrect results:

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A transition current:

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