Measurement of Single Spin Asymmetries in Semi-Inclusive Deep Inelastic Scattering Reaction n†( e, e'pi+X at Jefferson Lab
by Allada, Kalyan C., Ph.D., UNIVERSITY OF KENTUCKY, 2010, 174 pages; 3491684

Abstract:

What constitutes the spin of the nucleon? The answer to this question is still not completely understood. Although we know the longitudinal quark spin content very well, the data on the transverse quark spin content of the nucleon is still very sparse. Semi-inclusive Deep Inelastic Scattering (SIDIS) using transversely polarized targets provide crucial information on this aspect. The data that is currently available was taken with proton and deuteron targets.

The E06-010 experiment was performed at Jefferson Lab in Hall-A to measure the single spin asymmetries in the SIDIS reaction n(e, e'π± /K±)X using transversely polarized 3He target. The experiment used the continuous electron beam provided by the CEBAF accelerator with a beam energy of 5.9 GeV. Hadrons were detected in a high-resolution spectrometer in coincidence with the scattered electrons detected by the BigBite spectrometer. The kinematic coverage focuses on the valence quark region, x = 0.19 to 0.34, at Q2 = 1.77 to 2.73 (GeV/c)2. This is the first measurement on a neutron target. The data from this experiment, when combined with the world data on the proton and the deuteron, will provide constraints on the transversity and Sivers distribution functions on both the u and d-quarks in the valence region. In this work we report on the single spin asymmetries in the SIDIS n( e, e'π±) X reaction.

 
AdviserWolfgang Korsch
SchoolUNIVERSITY OF KENTUCKY
SourceDAI/B 73-04, p. , Jan 2012
Source TypeDissertation
SubjectsNuclear physics; Particle physics
Publication Number3491684
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