  A theory for the high temperature superconductors is proposed. Holes are
spin-1/2, charge e, quasiparticles strongly dressed by spin fluctuations. Based
on their dispersion, it is claimed that the experimentally observed van Hove
singularities of the cuprates are likely originated by antiferromagnetic (AF)
correlations. From the two carriers problem in the 2D t-J model, an effective
Hamiltonian for holes is defined with %no free parameters. This effective model
has superconductivity in the ${\rm d_{x^2-y^2}}$ channel, a critical
temperature ${\rm T_c \sim 100K}$ at the optimal hole density, ${\rm x=0.15}$,
and a quasiparticle lifetime linearly dependent with energy. Other experimental
results are also $quantitatively$ reproduced by the theory.

Condensed Matter