We consider the non-relativistic superconformal U(N) X U(N) Chern-Simons
theory with level (k,-k) possessing fourteen supersymmetries. We obtain an
exact four-point scattering amplitude of the theory to all orders in 1/N and
1/k and prove that the scattering amplitude becomes trivial when k=1 and 2. We
confirm this amplitude to one-loop order by using an explicit field theoretic
computation and show that the beta function for the contact interaction
vanishes to the one-loop order, which is consistent with the quantum conformal
invariance of the underlying theory.Comment: 16 page