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Type of Document Dissertation Author Boutachkov, Plamen Author's Email Address pboutach@nd.edu URN etd-03242005-005431 Title TOWARD UNDERSTANDING OF THE NUCLEAR FORCE VIA DETAILED SPECTROSCOPY OF $^{208}$Bi AND DEVELOPMENT OF NEW TECHNIQUES FOR STUDIES OF NEUTRON RICH EXOTIC NUCLEI: SPECTROSCOPY OF $^{7}$He. Degree Doctor of Philosophy Department Physics Advisory Committee
Advisor Name Title Ani Aprahamian Committee Member Mitch Wayne Committee Member Philippe Collon Committee Member Stefan Frauendorf Committee Member Keywords
- RIB experimrnts
- isobaric analog states
- new experimental techiques
- spectroscopy of 7He and 208Bi
- nuclear structure
- neutron rich nuclei
Date of Defense 2005-03-16 Availability unrestricted Abstract This thesis is an experimental study of the nuclear force. In the first part of the thesis the single particle structure of $^{208}$Bi is studiedvia the $gamma-gamma$ coincidence technique. This experimental data provides information about the residual particle-hole interaction in the Lead region. In the second part of the thesis the structure of $^7$He is studied. The experimental study of $^7$He was motivated by experimental evidence for reduction of the spin-orbit force in the above nucleus. To study the $^7$He structure two new experimental techniques were developed. The new data obtained with these techniques showed that there is no reduction of the spin orbit force in $^7$He. It is shown that the developed methods can be used to study other exotic neutron rich nuclei. The techniques are described in details in this work and future prospectives are given.
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