Leading Yukawa terms in the three-loop anomalous dimension and four-loop ${\hat{I}}^2$-function of $\mathcal{N}=1$ supersymmetric theories for various renormalization prescriptions

Ratmir Jumanov, Konstantin Stepanyantz

For an arbitrary renormalizable $\mathcal{N}=1$ supersymmetric theory with a single gauge coupling regularized by higher covariant derivatives we calculate the three-loop contribution…