### Session K16: Sub-Nucleonic Degrees of Freedom I

1:15 PM–3:03 PM, Sunday, April 15, 2007
Hyatt Regency Jacksonville Riverfront Room: City Terrace 12

Chair: Thomas Ulrlich, Brookhaven National Laboratory

Abstract ID: BAPS.2007.APR.K16.4

### Abstract: K16.00004 : Measuring the gluon helicity distribution at a polarized electron-proton collider

1:51 PM–2:03 PM

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#### Author:

Christine Aidala
(UMass Amherst)

A polarized electron-proton collider would offer the opportunity to probe the spin structure of the proton over a greatly enhanced kinematic range compared to earlier fixed-target polarized deep-inelastic scattering experiments. Such a facility would provide access to the gluon helicity distribution within the proton through scaling violations of the polarized structure function, $g_1$, as well as through certain exclusive channels. Estimates of improved constraints on the gluon helicity distribution that could be obtained with a proposed polarized electron-proton collider will be shown.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.APR.K16.4