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U of I Only AAI9021765 (UMI)AAI9021765 Wambach, J. Sustich, Andrew Thomas 2011-05-07T12:15:25Z 2011-05-07T12:15:25Z 10000-01-01 1990 The finite temperature Hartree-Fock (FTHF) equations are developed to describe a thermally equilibrated nucleus. These are solved for the nuclei $\sp{40}$Ca and $\sp{208}$Pb using a Skyrme interaction as the effective nucleon-nucleon interaction. Properties of these nuclei including excitation energy, entropy, and density are investigated as a function of the temperature of the nucleus. The linear response of a hot nucleus to a small amplitude time-dependent perturbation is derived, resulting in the finite temperature random phase approximation (FTRPA). These equations are solved consistent with the FTHF thermal ground state and Skyrme interaction. The properties of and transition strength to excite collective excitations of various multipolarity is investigated. The evolution of a hot and/or compressed nucleus is analyzed within the adiabatic approximation using a constrained FTHF method to describe the nucleus away from its equilibrium density. The development of a dynamical instability to long wavelength density fluctuations is described. The FTRPA equations are used to explore the onset of unstable multipole shape vibrations. Their role in the fragmentation of the nucleus is discussed. Made available in DSpace on 2011-05-07T12:15:25Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9021765.pdf: 2303980 bytes, checksum: fd2fe346af7d40f966f19a5ef1d1582b (MD5) Previous issue date: 1990 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:38:46Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:16:13-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission http://hdl.handle.net/2142/19690 eng Copyright 1990 Sustich, Andrew Thomas Physics, Nuclear Properties and dynamics of hot nuclei text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.