Universality in the Mixed SU(2) Lattice Gauge Theory. Nonperturbative Approach to the Ratio of A Parameters

摘要

The mixed SU(2) lattice gauge theory (LGT) is approximately represented as an effective SU(2) LGT with Wilson's action. This approach is applied to the nonperturbative calculation of the ratio of lambda -parameters in the mixed SU(2) LGT. It is shown that the formulas obtained fairly describe the Monte Carlo data so that universality holds in the mixed SU(2) LGT. (Atomindex citation 15:029007)