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arXiv · hep-ph/9812393

The intrinsic charm contribution to the proton spin

M. V. Polyakov·A. Schaefer·O. V. Teryaev
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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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M. V. Polyakov, A. Schaefer, O. V. Teryaev. 1998-12-16. The intrinsic charm contribution to the proton spin. https://doi.org/10.1103/physrevd.60.051502

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