Triple Coincidence Beam Spin Asymmetry Measurements in Deeply Virtual Compton Scattering

<p>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 <em>ep</em> → <em>epγ </em>reaction studied in the E00-110 experiment with fully exclusive triple coincidence <em>H</em>(<em>e</em>, <em>e'γp </em>) 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 <em>H</em>(<em>e</em>, <em>e'γ </em>)<em>p </em>results, I also presents a feasibility study for measurements of neutron GPDs via the ^3→He (e, <em>e'γ</em>)<em>ppn</em> reaction on a polarized ³<em>He</em> target with JLab at 12 GeV. These measurements offer the prospect of a determination of all four GPDs.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date.available

2011

Author dc:creator

• Canan, Mustafa

Contributors dc:contributor

• Charles E. Hyde
• Anatoly V. Radyushkin
• Moskov Amaryan
• Svetczar Popovic
• Mecit Cetin

• Asymmetry measurements
• Beam spin
• Compton scattering
• Virtual compton
• Elementary Particles and Fields and String Theory
• Nuclear

Statement dc:rights

• <p>In Copyright. URI: <a href="http://rightsstatements.org/vocab/InC/1.0/">http://rightsstatements.org/vocab/InC/1.0/</a> This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).</p>

Identifier

9781124635514

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:physics_etds-1030