Nucleon-nucleon scattering from fully dynamical lattice QCD

We present results of the first fully dynamical lattice QCD determination of nucleon-nucleon scattering lengths in the S-1(0) channel and S-3(1)-D-3(1) coupled channels. The calculations are performed with domain-wall valence quarks on the MILC staggered configurations with a lattice spacing of b=0.125 fm in the isospin-symmetric limit, and in the absence of electromagnetic interactions.