Mean--eld Treatment of the Linear Model in Dynamical Calculations of Dcc Observables

Approximate mean-eld equations of motion for the classical chiral eld are developed within the linear model by means of a Hartree factorization. Both the approximate and the unapproximated equations of motion are augmented with a Rayleigh cooling term to emulate a uniform expansion, thereby allowing the extraction of observables relevant to the detection of disoriented chiral condensates, speciically the pion power spectrum, the pion correlation function, and the distribution of the neutral pion fraction. While the mean-eld dynamics appears to be suuciently accurate to be practically useful, the results also illustrate some diiculties associated with identifying the phenomenon experimentally.