DiracSubstitute67
DiracSubstitute67[exp]
inserts the explicit definitions of the chirality projectors γ6 and γ7. DiracSubstitute67
is also an option of various FeynCalc functions that handle Dirac algebra.
See also
Overview, DiracSubstitute5, DiracGamma, ToDiracGamma67.
Examples
DiracGamma[6]
DiracSubstitute67[%]
γˉ6
2γˉ5+21
DiracGamma[7]
DiracSubstitute67[%]
γˉ7
21−2γˉ5
SpinorUBar[Subscript[p, 1]] . GA[6] . SpinorU[Subscript[p, 2]]
DiracSubstitute67[%]
uˉ(p1).γˉ6.u(p2)
(φ(p1)).(2γˉ5+21).(φ(p2))
SpinorUBar[Subscript[p, 1]] . GA[7] . SpinorU[Subscript[p, 2]]
DiracSubstitute67[%]
uˉ(p1).γˉ7.u(p2)
(φ(p1)).(21−2γˉ5).(φ(p2))