Effect of friction on disoriented chiral condensate formation - art. no. 117503.

We investigate the effect of friction on the DCC domain formation. We solve the Newton equation of motion for the O(4) fields, with a quenched initial condition. The initial fields are randomly distributed in a Gaussian form. In a one-dimensional expansion, on the average, large DCC domains cannot b e formed. However, in some particular orbits, large instabilities may occur . This possibility also greatly diminishes with the introduction of frictio n. But, if the friction is large, the system may be overdamped and then the re is a possibility of large DCC domain formation in some events, [S0556-28 21(99)03701-7].