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Determination of alpha_s from scaling violations of truncated moments of structure functions

Stefano Forte·Jose I. Latorre·Lorenzo Magnea·Andrea Piccione
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Abstract

We determine the strong coupling alpha_s(M_Z) from scaling violations of truncated moments of the nonsinglet deep inelastic structure function F_2. 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 alpha_s from scaling violations. We obtain alpha_s(M_Z) = 0.124 +0.004-0.007 (exp.) + 0.003- 0.004 (th.).

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Stefano Forte, Jose I. Latorre, Lorenzo Magnea, Andrea Piccione. 2002-05-24. Determination of alpha_s from scaling violations of truncated moments of structure functions. https://doi.org/10.1016/s0550-3213(02)00688-0

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