Triple coincidence beam spin asymmetry measurements in Deeply Virtual Compton Scattering
by Canan, Mustafa, Ph.D., OLD DOMINION UNIVERSITY, 2011, 170 pages; 3455746

Abstract:

The Generalized Parton Distributions (GPDs) provides hitherto the most complete information about the quark structure of hadron. GPDs are accessible through hard-exclusive reactions, among which Deeply Virtual Compton Scattering (DVCS) is the cleanest reaction. A dedicated DVCS experiment on Hydrogen (E00-110) ran in the Hall A at Jefferson Laboratory in Fall 2004. I present here Beam Spin Asymmetry (BSA) results for the ep → epγ reaction studied in the E00-110 experiment with fully exclusive triple coincidence H(e, e'γp ) detection. I present a re-calibration of the electromagnetic calorimeter used to detect the high energy photon. This calibration is necessary to account for the effects of pile-up. The results show a 1-sigma disagreement with the double coincidence H(e, e'γ )p results, I also presents a feasibility study for measurements of neutron GPDs via the [special characters omitted](e, e'γ)ppn reaction on a polarized 3He target with JLab at 12 GeV. These measurements offer the prospect of a determination of all four GPDs.

 
AdviserCharles E. Hyde
SchoolOLD DOMINION UNIVERSITY
SourceDAI/B 72-07, p. , Jun 2011
Source TypeDissertation
SubjectsNuclear physics; Particle physics
Publication Number3455746
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