[SLAC] [SLAC Pubs and Reports]

SLAC-PUB-7293
Review of as Measurements

Abstract

Determinations of $\alpha_s$ are reviewed. Current results are limited to a precision of around 3-20%, largely by theoretical uncertainties. All measurements are consistent with a `world average' value of 0.118 $\pm$ 0.005 and there is no evidence of any discrepancy between `low-Q$^2$' and `high-Q$^2$' results.

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