The Damping Tail of CMB Anisotropies
By decomposing the damping tail of CMB anisotropies into a series of
transfer functions representing individual physical effects,
we provide ingredients that will aid in the reconstruction of the
cosmological model from small-scale CMB anisotropy data.
We accurately calibrate the model-independent effects of diffusion and
reionization damping which provide potentially the most robust
information on the background cosmology. Removing these effects,
we uncover model-dependent processes such as the acoustic peak modulation
and gravitational enhancement that can help distinguish between alternate
models of structure formation and provide windows into the evolution of
fluctuations at various stages in their growth.