ComplexConjugate[expr] complex conjugates expr. It operates on fermion lines, i.e., products of Spinor[..] .DiracMatrix[..] . Spinor[..], and changes all occuring LorentzIndex[mu] into LorentzIndex[ComplexIndex[mu]]. For taking the spin sum (i.e. constructing the traces) use FermionSpinSum. WARNING: In expr should be NO explicit I's in denominators!
See also: ComplexIndex, FermionSpinSum, LorentzIndex.
![[Graphics:Images/index_gr_1.gif]](Images/index_gr_1.gif)
![[Graphics:Images/index_gr_3.gif]](Images/index_gr_3.gif)
![[Graphics:Images/index_gr_5.gif]](Images/index_gr_5.gif)
![[Graphics:Images/index_gr_7.gif]](Images/index_gr_7.gif)
![[Graphics:Images/index_gr_9.gif]](Images/index_gr_9.gif)
![[Graphics:Images/index_gr_11.gif]](Images/index_gr_11.gif)
![[Graphics:Images/index_gr_13.gif]](Images/index_gr_13.gif)
![[Graphics:Images/index_gr_15.gif]](Images/index_gr_15.gif)
![[Graphics:Images/index_gr_17.gif]](Images/index_gr_17.gif)
![[Graphics:Images/index_gr_19.gif]](Images/index_gr_19.gif)
Notice that SpinorUBar and SpinorU are only input functions. Internally they are converted to Spinor objects.
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