Description
rg beta function RGBeta is a Mathematica package that allows the user to extract RG beta-functions up to loop order 4-3-3 for gauge, Yukawa, and quartic couplings, respectively, for a large class of 4D renormalizable models. If you use RGBeta, please cite arXiv:2101.08265..
play go88 org We describe a procedure for extracting \ ( \beta \) -functions using the general results and introduce RGBeta, a dedicated Mathematica package for extracting the \ ( \overline {\text {MS}} \) \ ( \beta \) -functions in broad classes of models. The package and example notebooks are available from the GitHub repository.
rg betrag bedeutung The RG flow of the coupling constant hα is given by the beta-function in this context is defined as which ≡ α − ln b (15.19) which measures the rate of change (heff (b) of the coupling hα for a logarithmic change in the UV scale, ln b = ln(a′/a). For b → 1, the beta-function reduces to ∂hα = =