Answer by oidbaier for Scalar Yukawa theory
Are the 1PI diagrams with one or three external bosinic lines reallydivergent?The three-point function for the scalar theory is indeed divergent. You can always get rid of the tadpole contributions by...
View ArticleAnswer by Lewis Miller for Scalar Yukawa theory
In 1988 I published a paper (Relativistic Quantum Field Theory of the $\sigma$ + $\omega$ Model, Proceedings of the Internatiional Workshop on Relativistic Nuclear Many-Body Physics, 6-9 June 1988,...
View ArticleScalar Yukawa theory
Let's consider the theory given by the following lagrangian in 4D$$\mathcal{L} = \frac{1}{2}\partial_\mu\phi \partial^\mu \phi - \frac{1}{2} M^2 \phi^2 + \bar\psi (i\gamma^\mu\partial_\mu - m)\psi -...
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