Physics, asked by uiiwow1786, 1 year ago

Scalar QED, are there any scalar-fermion vertices in this theory?

Answers

Answered by Somyasisodiya
0
Consider QED with an additional charged (complex) scalar field, ϕϕ:

L=−14FμνFμν+(Dμϕ)∗(Dμϕ)−μ2ϕ∗ϕ−ψ¯¯¯(iD−m)ψ.L=−14FμνFμν+(Dμϕ)∗(Dμϕ)−μ2ϕ∗ϕ−ψ¯(iD−m)ψ.

I know what the Feynman rules are for this theory and can derive them. My question is, though, are there any scalar-fermion vertices in this theory?
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