In this paper, we present a holographic realization of spontaneous chiral
symmetry breaking and confinement. The latter is realized by building a
solution of 5d Einstein-dilaton gravity leading to a confining quark antiquark
potential. The 4d currents and the quark mass operator associated with chiral
symmetry breaking and creation of meson states are mapped to 5d fields whose
dynamics is given by a non-Abelian Higgs action. We introduce a non-minimal
dilaton coupling to the tachyon potential which has two parameters, one of them
controlling the presence or absence of spontaneous chiral symmetry breaking and
the other controlling the sign of the chiral condensate as the quark mass
grows. We calculate the masses of vector, scalar, axial-vector and pseudoscalar
mesons, focusing on the effect of chiral symmetry breaking on the spectrum. In
the chiral limit we identify the emergence of a massless state in the
pseudoscalar meson spectrum, i.e., the pion. We calculate all meson decay
constants and confirm that the pion satisfies the Gell-Mann-Oakes relation in
the light quark regime.Comment: 36 pages, 20 figure