Paper
Quark Correlations and Single Spin Asymmetries
Authors
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 . We then use finiteness conditions for the light-cone Hamiltonian to relate the transverse gauge field at to the color density integrated over . This result allows us to relate the average transverse momentum of the active quark to color charge correlations in the transverse plane.