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<div><font color="#17365D" size="7"><b>Thesis Defense</b></font></div>
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<div><font color="#17365D" size="6"><b>Sharon Careccia</b></font></div>
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<div><font color="#0070C0" size="5" face="Arial, sans-serif"><b>"Single and Double Spin Asymmetries From pi- Electro-Production in the Resonance Region Using Deuterium"</b></font></div>
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<div><font color="#0070C0" size="5"><b>1:00 p.m.</b></font></div>
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<div><font color="#17365D" size="5"><b>Friday, December 9, 2011</b></font></div>
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<div>The single and double spin asymmetries <font face="Times New Roman Italic"><i>A</i></font><font size="1" face="Times New Roman Italic"><sub><i>t</i></sub></font> and <font face="Times New Roman Italic"><i>A</i></font><font size="1" face="Times New Roman Italic"><sub><i>et</i></sub></font>
have been measured in <font face="Symbol, serif">p</font><font size="1" face="Symbol, serif"><sup>-</sup></font> electro-production using a longitudinally polarized electron beam and a polarized ND<font size="1"><sub>3</sub></font> 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 2000. The final state particles were
detected in the CEBAF Large Acceptance Spectrometer (CLAS). The d(e,eŽ<font face="Symbol, serif">p</font><font size="1" face="Symbol, serif"><sup>-</sup></font>p)p exclusive channel was identified using the missing mass technique and the asymmetries were extracted
as a function of the momentum transfer <i>Q</i><font size="1"><sup><i>2</i></sup></font>, invariant mass <i>W</i>, and center of mass pion angles cos(<font face="Symbol, serif"><i>q</i></font><font size="1"><sup><i>*</i></sup></font>) and <font face="Symbol, serif"><i>f</i></font><font size="1"><sup><i>*</i></sup></font>.
The results are generally in agreement with the phenomenological model MAID at low energies, but there are discrepancies in the 2<font size="1"><sup>nd</sup></font> and 3<font size="1"><sup>rd</sup></font> resonance regions, as well as at forward angles.</div>
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<div><font size="5">OCNPS 304, Physics Conference Room </font></div>
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<div><font color="#0070C0" size="5"><b>All interested persons are cordially invited to attend.</b></font></div>
<div><font color="#0070C0" size="5"><b>All are Welcome!</b></font></div>
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