Multiloop Calculations in 풩 = 1 SQED with Nf Flavours Regularized by Higher Derivatives.

Autor: Shirokov, I. E.
Zdroj: Physics of Particles & Nuclei Letters; Jun2023, Vol. 20 Issue 3, p268-271, 4p
Abstrakt: We consider supersymmetric quantum electrodynamics (SQED) with flavors regularized by higher derivatives. The new program is used to calculate the contributions to the anomalous dimension of matter superfields up to the three-loop approximation. Using this calculation and the well-known NSVZ relation, we obtain the -function of this theory in the four-loop approximation. Then, we study scheme-dependence of these results. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index