Electromagnetic studies of Helium 3
Date
1983-09
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Masters
Abstract
Results for the reactions ³He(e,³He)e and ³He(e,d)pe' are presented in this
thesis. We used virtual photon formalism to derive the (γ,d) cross-sections from
the measured (e,d) cross-sections. Angular distributions and isochromats were
measured for this equivalent photodisintegration reaction. Theoretical isochromats
were calculated for lrving-Gunn wavefunctions for the ³He, and Hulthen
wavefunctions for the deuteron. The ratio of E2 to E1 transition strength in the
photodisintegration cross-section was determined from both angular distributions
and from isochromats. The ratios agree well with current calculations¹³,³⁵,⁵⁹, and
are in disagreement with earlier work ²⁰,³⁶, as well as with a recent polarized proton
capture experiment³⁷.
The electron scattering form factors were measured for 13 4-momentum
transfers squared of .885 fm⁻² ≤ q² ≤ 3.20 fm⁻² and were compared to previous
(e, e) data. Model dependent fits used by previous authors were made to the data.
In addition, a model independent determination of the radial charge density was
done, and an RMS radius extracted.
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Degree
Master of Science (M.Sc.)
Department
Physics
Program
Physics