arXiv:0909.0859v1 [hep-th] 4 Sep 2009

rg beta function 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..

11 bet vao11bet.org  We describe a procedure for extracting β -functions using the general results and introduce RGBeta, a dedicated Mathematica package for extracting the MS¯ ¯¯¯¯ β -functions in broad classes of models. The package and example notebooks are available from the GitHub repository.

11bet vao11bet.org  Thus, the answer to my first question is: The right way to get a beta function in the context of momentum-shell renormalization is to determine the flow of the couplings with rescaling Λ and to add that dependence to the flow induced by the engineering scaling dimensions of the couplings.