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The intrinsic charm contribution to the proton spin
classification
✦ hep-ph
keywords
charmcontributionaxialcalculatedcurrentdivergenceexpansionfirst
read the original abstract
The charm quark contribution to the first moment of $g_1(x,Q^2)$ is calculated using a heavy mass expansion of the divergence of the singlet axial current. It is shown to be small.
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