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We recapitulate the method which resums the truncated perturbation series ofa physical observable in a way which takes into account the structure of theleading infrared renormalon. We apply the method to the Gross-Llewellyn Smith(GLS) sum rule. By confronting the obtained result with the experimentallyextracted GLS value, we determine the value of the QCD coupling parameter whichturns out to agree with the present world average.Comment: invited talk by G.C. in WG3 of NuFact02, July 1-6, 2002, London; 4  pages, revte

Determination of sfrom Gross–Llewellyn Smith sum rule by accounting for infrared renormalon

Determination of _sfrom Gross–Llewellyn Smith sum rule by accounting for infrared renormalon