An Investigation of Low Energy Hydrogen (polarized Deuteron, Photon) HELIUM-3 and Deuterium (proton, Photon) HELIUM-3 Reactions)

Details An Investigation of Low Energy Hydrogen (polarized Deuteron, Photon) HELIUM-3 and Deuterium (proton, Photon) HELIUM-3 Reactions) An Investigation of Low Energy Hydrogen (polarized Deuteron, Photon) HELIUM-3 and Deuterium (proton, Photon) HELIUM-3 Reactions)

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phdt........32m&link_type=abstract

Thesis (PH.D.)--THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL, 1995.Source: Dissertation Abstracts International, Volume: 57

Astronomy and Astrophysics

Astrophysics

Radiative Capture, Meson Exchange, S-Factors

Scientific paper

Angular distributions of the vector analyzing power A_{rm y} for ^2H(vec p,gamma)^3He at E_{rm c.m.}=70 -210 keV c.m., and the vector and tensor analyzing powers iT11 T 20 and T_{22 } for ^1H(vec d,gamma)^3He at E_ {rm c.m.}= 40-110 keV have been measured for the first time. The total cross section and astrophysical S-factor have been measured at < E_{rm c.m.}> = 75, 108, 133, and 173 keV. Precise measurements of the analyzing powers for these reactions bear a great importance in probing low energy radiative capture reaction mechanisms and the measurements of the astrophysical S -factors could better our understanding of stellar evolution processes. In the course of this work, vapor condensed ice or heavy ice targets and two large volume High Purity Germanium gamma-ray detectors were used. The functional energy dependence for all the analyzing powers are extracted. The final results are compared with and interpreted under two realistic nuclear models: Refined Resonating Group Model (RRGM) and Correlated Hyperspherical Harmonics (CHH) expansion model.

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