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Thursday, 28 June 2012

Wess-Bagger Weyl spinor notation

ημν=diag(1,1,1,1)1=ε12=ε12ε0123=ε0123=1ψα=εαβψβ;ψα=εαβψβψα˙=εα˙β˙ψβ˙;ψα˙=εα˙β˙ψβ˙ψχ=ψαχα=ψαχα=χαψα=χψψ¯χ¯=ψ¯α˙χ¯α˙=ψ¯α˙χ¯α˙=χ¯α˙ψ¯α˙=χ¯ψ¯(χψ)=(χαψα)=ψ¯α˙χ¯α˙=ψ¯χ¯=χ¯ψ¯ΨD=[χαψα˙]γμ=[σμσ¯μ]γμ=[σμσ¯μ]σμ=(1,σ);σ¯μ=(1,σ)σ¯μα˙α=εα˙β˙εαβσββ˙μtrσμσ¯ν=σαα˙μσ¯να˙α=2ημν