We extract a set of values for the Gross-Llewellyn Smith sum rule at different values of 4-momentum transfer squared (Q(2)), by combining revised CCFR neutrino data with data from other neutrino deep-inelastic scattering experiments for 1 < Q(2) < 15 GeV2/c(2). A comparison with the order alpha(s)(3) theoretical predictions yields a determination of ct, at the scale of;he Z-boson mass of 0.114 +/- (0.009)(0.012). This measurement provides a new and useful test of perturbative QCD at low Q(2), because of the low uncertainties in the higher order calculations. [S0031-9007(98)07266-4].
机构:
Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47405 USAIndiana Univ, Dept Phys, Bloomington, IN 47405 USA
Londergan, J. T.
Thomas, A. W.
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Univ Adelaide, Sch Chem & Phys, CSSM, Adelaide, SA 5005, AustraliaIndiana Univ, Dept Phys, Bloomington, IN 47405 USA