Single and Double Spin Asymmetries for Pion Electro-Production From the Deuteron in the Resonance Region

<p>The single and double spin asymmetries A_<em>t</em> and A_<em>et</em> have been measured in π^- electro-production off the deuteron using a longitudinally polarized electron beam and a polarized ND₃ target. The electron beam was polarized using a strained GaAs cathode and the target was polarized using Dynamic Nuclear Polarization. The data were collected at beam energies of 1.6, 1.7, 2.5 and 4.2 GeV in Hall B at Jefferson Lab in the spring of 2001. The final state particles were detected in the CEBAF Large Acceptance Spectrometer (CLAS). The d(e,e'π-p)p exclusive channel was identified using the missing mass technique and the asymmetries were extracted as a function of the momentum transfer <em>Q</em>², invariant mass <em>W</em>, and center of mass pion angles cos (θ*) and (Φ*). The results are generally in agreement with the phenomenological model MAID at low energies, but there are discrepancies in the 2nd and 3rd resonance regions, as well as at forward angles</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date.available

2012

Author dc:creator

• Careccia, Sharon L.

Contributors dc:contributor

• Gail E. Dodge
• Sebastian E. Kuhn
• Leposava Vuskovic
• Anatoly Radyushkin
• Margaret Mulholland

• Deuterons; Electroproduction
• Pions
• Resonance region
• Spin asymmetries
• 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

9781267395788

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:physics_etds-1031