  The Ratios Conjecture of Conrey, Farmer and Zirnbauer predicts the answers to
numerous questions in number theory, ranging from n-level densities and
correlations to mollifiers to moments and vanishing at the central point. The
conjecture gives a recipe to generate these answers, which are believed to be
correct up to square-root cancelation. These predictions have been verified,
for suitably restricted test functions, for the 1-level density of orthogonal
and symplectic families of L-functions. In this paper we verify the
conjecture's predictions for the unitary family of all Dirichlet $L$-functions
with prime conductor; we show square-root agreement between prediction and
number theory if the support of the Fourier transform of the test function is
in (-1,1), and for support up to (-2,2) we show agreement up to a power savings
in the family's cardinality.
