  Approximate mean-field equations of motion for the classical chiral field are
developed within the linear sigma 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, specifically the pion power spectrum, the pion correlation
function, and the distribution of the neutral pion fraction. While the
mean-field dynamics appears to be sufficiently accurate to be practically
useful, the results also illustrate some difficulties associated with
identifying the phenomenon experimentally.
