Spin Structure Moments of the Proton and Deuteron
2009
Moments of the
spin structurefunctions g1 and g2 of the proton and deuteron have been measured in the resonance region at intermediate
four momentumtransfer. We perform a Nachtmann moment analysis of this data, along with
isovectorand
isoscalarcombinations, in order to rigorously account for target
mass effects. This analysis provides the first definitive evidence for dynamic higher twists.
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Correction
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