Comment on "Spurious fixed points in frustrated magnets,"   cond-mat/0609285
  We critically discuss the arguments reported in cond-mat/0609285 by B.   Delamotte, Yu. Holovatch, D. Ivaneyko, D. Mouhanna, and M. Tissier. We show that their conclusions are not theoretically founded. They are contradicted by theoretical arguments and numerical results. On the contrary, perturbative field theory provides a robust evidence for the existence of chiral fixed points in O(2) X O(N) systems with N>=2. The three-dimensional perturbative results are consistent with theory and with all available experimental and Monte Carlo results. They provide a consistent scenario for the critical behavior of chiral systems. 
Andrea Pelissetto and Ettore Vicari