Nucleon-Nucleon effective field theory with dibaryon fields

We report on a calculation of the nucleon-nucleon scattering amplitudes in the ${}^1{S}_0$ and ${}^3{S}_1$-${}^3{D}_1$ channels at next-to-next to leading order using a recently proposed non-relativistic chiral effective theory, which includes dibaryon field as fundamental degrees of freedom.