Session 1WB: Workshop on Hard Scattering Processes and 3D Parton Distributions I

9:00 AM–1:30 PM, Wednesday, October 10, 2007
Newport News Marriott at City Center - Pearl Salon II/III

Chair: Latifa Eloudhiri, Jefferson Lab

Abstract ID: BAPS.2007.DNP.1WB.3

Abstract: 1WB.00003 : Spin Orbit Correlations

9:55 AM–10:30 AM

Preview Abstract

Author:

  M. Burkhardt
    (New Mexico State University)

I discuss the physical interpretation for generalized parton distributions (GPDs) with special focus on those GPDs that describe parton asymmetries in impact parameter space. The chirally even GPD $E(x,0,-{\bf \Delta}_\perp^2)$ describes the transverse deformation of the distribution of unpolarized quarks in a transversely polarized nucleon. In combination with an attractive final state interaction (FSI) this deformation can explain the Sivers effect in SIDIS. The chirally odd GPD $\bar{E}_T(x,0,-{\bf \Delta}_\perp^2)$ describes the deformation of the distribution of transversely polarized quarks in an unpolarized target. I will explain the physics associated with the sign of $\bar{E}_T$ and its implications for measurements of the Boer-Mulders function.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.DNP.1WB.3