CRITICAL EXPONENTS OF NEW UNIVERSALITY CLASSES

We calculate critical exponents of chiral Ising, XY and Heisenberg uni versality classes up to second order in 4 - epsilon expansion. General expressions for any number N of fermionic variables are given and com pared with recent extensive 1/N calculation and lattice simulations. T he possibility that these new universality classes describe critical p henomena in certain 3D magnetic systems and in finite temperature phas e transitions of 3 + 1 dimensional quantum field theories is briefly d iscussed.