On the stability problem in the O(N) nonlinear sigma model
Abstract
The stability problem for the O(N) nonlinear sigma model in the 2+ε dimensions is considered. We present the results of the 1/N2 order calculations of the critical exponents (in the 2<d<4 dimensions) of the composite operators relevant for this problem. The arguments in the favor of the scenario with the conventional fixed point are given.
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