Three-Loop beta-Function in the N-1,2,4, Supersymmetric Yang-Mills Theories

摘要

Results of the renormalization group beta-function calculations in the N=1,2,4 supersymmetric Yang-Mills theories are presented. In the N=2 theory the two- and three-loop coefficients are found to be zero. For N=4 all the three coefficients vanish as it was shown earlier. (Atomindex citation 13:697158)