  We report the results of a calculation of the response of cold neutron matter
to neutral-current interactions with low energy neutrinos, carried out using an
effective interaction and effective operators consistently derived within the
formalism of Correlated Basis Functions. The neutrino mean free path obtained
from the calculated responses turns out to be strongly affected by both short
and long range correlations, leading to a sizable increase with respect to the
prediction of the Fermi gas model. The consistency between the proposed
approach and Landau theory of normal Fermi liquids also has been investigated,
using a set of Landau parameters obtained from the matrix elements of the
effective interaction.
