ar X iv : h ep - l at / 9 80 90 10 v 1 2 S ep 1 99 8 Running Coupling in the SU ( 2 ) Lattice Gauge Theory
نویسندگان
چکیده
Scenario according to which the SU(2)-gluodynamics is a theory with a nontrivial fixed point is analyzed from the point of view of the modern Monte-Carlo (MC) lattice data. It is found that an assumption of the first order fixed point g = g f of the beta function β f (g) has no contradictions with existing MC lattice data. The beta function parameters are found from the requirement of constant values for critical temperature T c /Λ F P L and string tension √ σ/Λ F P L in MC lattice calculations at 4/g 2 ≥ 2.30.
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تاریخ انتشار 1998