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A study of vector polarized lithium-6 scattering

The elastic scattering vector analyzing powers for $\sp6$Li + $\sp{16}$O at 25.7 MeV and $\sp6$Li + $\sp{12}$C at 30 MeV have been measured in detail. In addition, the first analyzing power measurements for inelastic $\sp6$Li scattering have been made; specifically for the 2$\sp+$ (4.44 MeV) state in $\sp{12}$C. The emphasis in the experiment was to obtain the highest quality data possible, which is a difficult task when working with a polarized ion source. The present vector analyzing power data, along with previous elastic and inelastic scattering cross section data, provide a severe test of current heavy ion scattering models. / The data have been analyzed in the coupled channels framework, employing the double folding model for the real part of the nuclear scattering potential. Unlike previous studies of polarized Li scattering, the coupling strengths in the CC calculations were unambiguously determined from inelastic scattering cross section data. The only free parameters in the calculations were the imaginary term of the scattering potential and the strength of the folded potential. / The analysis shows that the vector analyzing power arises from a complicated interference between channel coupling effects and the spin orbit potential. In contrast to the results of Sakuragi, an explicit spin orbit potential was required to describe the data. It was found that both the first 3$\sp+$ and 2$\sp+$ excitations in $\sp6$Li were important to the coupling scheme. / Coupled channels calculations for the $\sp{12}$C, 2$\sp+$ state predicted zero analyzing power in the angular range of the data. Thus, only the explicit spin orbit potential will contribute to the analyzing power. This may allow the shape and strength of the heavy ion spin orbit potential to be investigated more closely since there is no interference from coupling effects. / Source: Dissertation Abstracts International, Volume: 50-02, Section: B, page: 0625. / Major Professor: Kirby W. Kemper. / Thesis (Ph.D.)--The Florida State University, 1988.

Identiferoai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_77950
ContributorsVan Verst, Scott Paul., Florida State University
Source SetsFlorida State University
LanguageEnglish
Detected LanguageEnglish
TypeText
Format146 p.
RightsOn campus use only.
RelationDissertation Abstracts International

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