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We present a new calculation of the critical exponents of the n-vector model through field-theoretical methods. The coefficients of the renormalization functions of the ({{}^2) }^2 theory are expanded in powers of the coupling constant. Asymptotic estimates of large order of perturbation series are used to transform the divergent perturbation series into a convergent one. As a consequence, new and more precise values of critical exponents are obtained.
Guillou et al. (Mon,) studied this question.