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arXiv · hep-ph/0311013

Quark Correlations and Single Spin Asymmetries

Matthias Burkardt
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Abstract

We analyze the Sivers asymmetry in light-cone gauge. The average transverse momentum of the quark distribution is related to the correlation between the quark distribution and the transverse component of the gauge field at $x^-\pm \infty$. We then use finiteness conditions for the light-cone Hamiltonian to relate the transverse gauge field at $x^-=\pm \infty$ to the color density integrated over $x^-$. This result allows us to relate the average transverse momentum of the active quark to color charge correlations in the transverse plane.

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Matthias Burkardt. 2003-11-21. Quark Correlations and Single Spin Asymmetries. https://doi.org/10.1103/physrevd.69.057501

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