Determination of αS from scaling violations of truncated moments of structure functions Original Research Article

We determine the strong coupling αS(MZ) from scaling violations of truncated moments of the nonsinglet deep inelastic structure function F2. Truncated moments are determined from BCDMS and NMC data using a neural network parametrization which retains the full experimental information on errors and correlations. Our method minimizes all sources of theoretical uncertainty and bias which characterize extractions of αS from scaling violations. We obtain αS(MZ)=0.124+0.004−0.007 (exp.) +0.003−0.004 (th.).