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SANE's Measurement of the Proton's Virtual Photon Spin Asymmetry, Ap1, at Large Bjorken1022 views
Author
Mulholland, Jonathan Robert Lee, Department of Physics, University of Virginia
Advisors
Day, Donal, Department of Physics, University of Virginia
Rondon, Oscar, Department of Physics, University of Virginia
Paschke, Kent, Department of Physics, University of Virginia
Crabb, Donald, Department of Physics, University of Virginia
Abstract
The experiment SANE (Spin Asymmetries of the Nucleon Experiment) measured inclusive double polarization electron asymmetries on a proton target at the Continuous Electron Beam Accelerator Facility at the Thomas Jefferson National Laboratory in Newport News Virgina. Polarized electrons were scattered from a solid 14 NH 3 polarized target provided by the University of Virginia target group. Measurements were taken with the target polarization oriented at 80 ◦ and 180 ◦ relative to the beam direction, and beam energies of 4.7 and 5.9 GeV were used. Scattered electrons were detected by a multi-component novel non-magnetic detector package constructed for this experiment. Asymmetries measured at the two target orientations allow for the extraction of the virtual Compton asymmetries A p 1 and A p 2 as well as the spin structure functions g p 1 and g2. p This work addresses the extraction of the virtual Compton asymmetry A p 1 in the deep inelastic regime. The analysis uses data in the kinematic range from Bjorken x of 0.30 to 0.55, separated into four Q 2 bins from 1.9 to 4.7 GeV 2 .
Note: Abstract extracted from PDF text
Degree
PHD (Doctor of Philosophy)
Language
English
Rights
All rights reserved (no additional license for public reuse)
Mulholland, Jonathan Robert Lee. SANE's Measurement of the Proton's Virtual Photon Spin Asymmetry, Ap1, at Large Bjorken. University of Virginia, Department of Physics, PHD (Doctor of Philosophy), 2012-05-01, https://doi.org/10.18130/V36C4G.
