THE ASYMPTOTIC METHOD DEVELOPED FROM WEAK TURBULENT THEORY AND THE NONLINEAR PERMEABILITY AND DAMPING RATE IN QGP

With asymptotic method developed from weak turbulent theory, the kinet ic equations for QGP are expanded in fluctuation field potential A(mu) (T). Considering the second-order and third-order currents, we derive the nonlinear permeability tensor function from Yang-Mills field equat ion, and find that the third-order current is more important in turbul ent theory. The nonlinear permeability formulae for longitudinal color oscillations show that the non-Abelian effects are more important tha n the Abelian-like effects. To compare with other works, we give the n umerical result of the damping rate for the modes with zero wave vecto r. (C) 1997 Elsevier Science B.V.